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Taeniodus regularis (1)
St. John & Worthen, 1883
Valid name: Psephodus regularis
Valid name: Psephodus regularis
Original description species: St. John & Worthen, 1883
Genus: Taeniodus St.John & Worthen
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali
Taeniura aff. cavernosa (1)
(Probst, 1877)
Valid name: Taeniurops cavernosus
Valid name: Taeniurops cavernosus
Original description species: (Probst, 1877)
Genus: Taeniura Müller & Henle, 1837
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniura aff. grabata-f (4)
(Geoffroy Saint-Hilaire, 1817)
Valid name: Taeniurops grabatus-f
Valid name: Taeniurops grabatus-f
Original description species: (Geoffroy Saint-Hilaire, 1817)
Genus: Taeniura Müller & Henle, 1837
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniura cavernosa (1)
(Probst, 1877)
Valid name: Taeniurops cavernosus
Valid name: Taeniurops cavernosus
Original description species: (Probst, 1877)
Genus: Taeniura Müller & Henle, 1837
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniura cf. grabata-f (1)
(Geoffroy Saint-Hilaire, 1817)
Valid name: Taeniurops grabatus-f
Valid name: Taeniurops grabatus-f
Original description species: (Geoffroy Saint-Hilaire, 1817)
Genus: Taeniura Müller & Henle, 1837
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniura knerii (2)
Molin, 1861
Valid name: Arechia crassicaudata
Valid name: Arechia crassicaudata
Original description species: Molin, 1861
Genus: Taeniura Müller & Henle, 1837
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniura sp-f (7)

Genus: Taeniura Müller & Henle, 1837
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniurops cavernosa (1)
(Probst, 1877)
Valid name: Taeniurops cavernosus
Valid name: Taeniurops cavernosus
Original description species: (Probst, 1877)
Genus: Taeniurops Garman, 1913
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniurops cavernosus (51)
(Probst, 1877)
Synonyms: Dasyatis aff. cavernosa, Dasyatis cavernosa, Dasyatis cavernosus, Raja cavernosa, Taeniura aff. cavernosa, Taeniura cavernosa, Taeniurops cavernosa, Trygon cavernosus
Original description species: (Probst, 1877)
Genus: Taeniurops Garman, 1913
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniurops grabatus-f (6)
(Geoffroy Saint-Hilaire, 1817)
Synonyms: Taeniura aff. grabata-f, Taeniura cf. grabata-f
Original description species: (Geoffroy Saint-Hilaire, 1817)
Genus: Taeniurops Garman, 1913
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniurops sergiomorai (1)
Laurito & Valerio, 2021
Original description species: Laurito & Valerio, 2021
Genus: Taeniurops Garman, 1913
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniurops sp-f (6)

Genus: Taeniurops Garman, 1913
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taeniurops tosii (1)
Adnet & Charpentier, 2022
Original description species: Adnet & Charpentier, 2022
Genus: Taeniurops Garman, 1913
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Taklamakanolepis asiaticus (2)
Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Original description species: Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Genus: Taklamakanolepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Family: Mongolepididae Karatajute-Talimaa & Novitskaya, 1990
Order: Mongolepidida
Tamiobatis cf. succinctus (1)
Williams, 1989
Original description species: Williams, 1989
Genus: Tamiobatis Eastman, 1897
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Tamiobatis elgae (1)
Ivanov, 2018
Original description species: Ivanov, 2018
Genus: Tamiobatis Eastman, 1897
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Tamiobatis sp. (7)

Genus: Tamiobatis Eastman, 1897
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Tamiobatis succinctus (6)
(St. John & Worthen, 1875)
Synonyms: Cladodus exiguus, Cladodus succinctus
Original description species: (St. John & Worthen, 1875)
Genus: Tamiobatis Eastman, 1897
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Tamiobatis vetustus (9)
Eastman, 1897
Original description species: Eastman, 1897
Genus: Tamiobatis Eastman, 1897
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Tamiobatis wachsmuthi (4)
(St. John & Worthen, 1875)
Synonyms: Cladodus wachsmuthi
Original description species: (St. John & Worthen, 1875)
Genus: Tamiobatis Eastman, 1897
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Tanaodus angularis (1)
(Newberry & Worthen, 1866)
Valid name: Chomatodus angulatus
Valid name: Chomatodus angulatus
Original description species: (Newberry & Worthen, 1866)
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus bellicinctus (4)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus depressius (2)
St. John & Worthen, 1875
Valid name: Tanaodus depressus
Valid name: Tanaodus depressus
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus depressus (4)
St. John & Worthen, 1875
Synonyms: Tanaodus depressius
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus gracillimus (1)
(Newberry & Worthen, 1866)
Original description species: (Newberry & Worthen, 1866)
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus grossiplicatus (4)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus multiplicatus (5)
(Newberry & Worthen, 1866)
Synonyms: Chomatodus multiplicatus
Original description species: (Newberry & Worthen, 1866)
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus obscurus (4)
(Leidy, 1857)
Synonyms: Chomatodus obscurus
Original description species: (Leidy, 1857)
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus polymorphus (4)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus praenuntius (4)
St. John & Worthen, 1875
Valid name: Cladodus bellifer
Valid name: Cladodus bellifer
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus pumilis (5)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus scoticus (4)
(Moy-Thomas, 1938)
Synonyms: Antliodus scoticus
Original description species: (Moy-Thomas, 1938)
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus sculptus (4)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus sublunatus (4)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanaodus wisei (3)
(Woodward, 1920)
Synonyms: Climaxodus wisei
Original description species: (Woodward, 1920)
Genus: Tanaodus St. John & Worthen, 1875
Family: Petalodontidae Newberry & Worthen, 1866
Order: Petalodontiformes
Subclass: Euchondrocephali
Tanoutia iminensis (2)
Noubhani & Cappetta, 1995
Original description species: Noubhani & Cappetta, 1995
Genus: Tanoutia Noubhani & Cappetta, 1995
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tantalepis gatehousei (2)
Sansom, Davies, Coates, Nicoll, & Ritchie, 2012
Original description species: Sansom, Davies, Coates, Nicoll, & Ritchie, 2012
Genus: Tantalepis Sansom, Davies, Coates, Nicoll & Ritchie, 2012
Family: incert. fam.
Order: incert. sedis
Taquaralodus albuquerquei (6)
(Silva Santos, 1946)
Synonyms: Pleuracanthus albuquerquei, Xenacanthus albuquerquei
Original description species: (Silva Santos, 1946)
Genus: Taquaralodus Chahud & Petri, 2010
Family: Diplodoselachidae Dick, 1981
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Tarimacanthus bachuensi (1)
Min, 1998
Original description species: Min, 1998
Genus: Tarimacanthus Min, 1998
Family: Sinacanthidae Min, 1998
Order: Sinacanthida
Subclass: Elasmobranchii
Tassiliodus lessardi (2)
Derycke & Goujet, 2011
Original description species: Derycke & Goujet, 2011
Genus: Tassiliodus Derycke & Goujet, 2011
Family: incert. fam.
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii
Telodontaspis agassizensis (6)
Underwood & Cumbaa, 2010
Valid name: Cretoxyrhina agassizensis
Valid name: Cretoxyrhina agassizensis
Original description species: Underwood & Cumbaa, 2010
Genus: Telodontaspis Underwood & Cumbaa, 2010
Family: Archaeolamnidae Underwood & Cumbaa, 2010
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Terangabatis thiami (1)
Guinot, Hautier, Sambou & Martin, 2023
Original description species: Guinot, Hautier, Sambou & Martin, 2023
Genus: Terangabatis Guinot, Hautier, Sambou & Martin, 2023
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Teresodus amplexus (2)
Koot, Cuny, Tintori & Twitchett, 2013
Original description species: Koot, Cuny, Tintori & Twitchett, 2013
Genus: Teresodus Koot, Cuny, Tintori & Twitchett, 2013
Family: incert. fam.
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Teslepis jucunda (3)
Karatajute-Talimaa & Novitskaya, 1992
Original description species: Karatajute-Talimaa & Novitskaya, 1992
Genus: Teslepis Karatajute-Talimaa & Novitskaya, 1992
Family: Mongolepididae Karatajute-Talimaa & Novitskaya, 1990
Order: Mongolepidida
Tethybatis selachoides (3)
Carvalho, 2004
Original description species: Carvalho, 2004
Genus: Tethybatis De Carvalho, 2004
Family: Rhinobatidae Bonaparte, 1835
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tethylamna cf. twiggsensis (2)
(Case, 1981)
Valid name: Brachycarcharias twiggsensis
Valid name: Brachycarcharias twiggsensis
Original description species: (Case, 1981)
Genus: Tethylamna Cappetta & Case, 2016
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tethylamna dunni (4)
Cappetta & Case, 2016
Original description species: Cappetta & Case, 2016
Genus: Tethylamna Cappetta & Case, 2016
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tethylamna sp. (1)

Genus: Tethylamna Cappetta & Case, 2016
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tethylamna twiggsensis (3)
(Case, 1981)
Valid name: Brachycarcharias twiggsensis
Valid name: Brachycarcharias twiggsensis
Original description species: (Case, 1981)
Genus: Tethylamna Cappetta & Case, 2016
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tethytrygon muricatus (25)
(Volta, 1796)
Synonyms: Alexandrinum molinii, Alexandrinum sp., Anacanthus zigni, Anacanthus zignii, Dasyatis molinii, Dasyatis muricata, Dasyatis zigni, Raja muricata, Trygon gazolae, Trygon gazzolae, Trygon muricata, Trygon muricatus, Trygon (Taeniura) muricatus, Trygonobatus vulgaris
Original description species: (Volta, 1796)
Genus: Tethytrygon Marramà, Carnevale, Naylor & Kriwet, 2018
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texabatis corrugata (2)
Case & Cappetta, 1997
Original description species: Case & Cappetta, 1997
Genus: Texabatis Case & Cappetta, 1997
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texasodus sp. (1)

Genus: Texasodus Ivanov, Nestell & Nestell, 2012
Family: Jalodontidae Ginter, Hairapetian & Klug, 2002
Order: Jalodontiformes
Subclass: Elasmobranchii
Texasodus varidentatus (5)
Ivanov, Nestell & Nestell, 2012
Original description species: Ivanov, Nestell & Nestell, 2012
Genus: Texasodus Ivanov, Nestell & Nestell, 2012
Family: Jalodontidae Ginter, Hairapetian & Klug, 2002
Order: Jalodontiformes
Subclass: Elasmobranchii
Texatrygon avonicola (2)
(Estes, 1964)
Valid name: Ischyrhiza avonicola
Valid name: Ischyrhiza avonicola
Original description species: (Estes, 1964)
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon benningensis (4)
(Case, Schwimmer, Borodin & Leggett, 2001)
Synonyms: Erguitaia benningensis, Ptychotrygon benningensis
Original description species: (Case, Schwimmer, Borodin & Leggett, 2001)
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon brycensis (3)
Kirkland, Eaton & Brinkman, 2013
Original description species: Kirkland, Eaton & Brinkman, 2013
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon cf. copei (1)
Cappetta & Case, 1999
Valid name: Texatrygon copei
Valid name: Texatrygon copei
Original description species: Cappetta & Case, 1999
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon copei (3)
Cappetta & Case, 1999
Synonyms: Texatrygon cf. copei
Original description species: Cappetta & Case, 1999
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon hooveri (9)
(Mcnulty & Slaughter, 1972)
Synonyms: Ptychotrygon hooveri, Ptychotrygon rubyae, Texatrygon rubyae
Original description species: (Mcnulty & Slaughter, 1972)
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon sp. (1)

Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Texatrygon stouti (2)
Bourdon, Wright, Lucas, Spielmann & Pence, 2011
Original description species: Bourdon, Wright, Lucas, Spielmann & Pence, 2011
Genus: Texatrygon Cappetta & Case, 1999
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tezakia hardingensis (2)
Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
Original description species: Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
Genus: Tezakia Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
Family: Tezakidae Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
Order: Altholepidiformes
Tezakia hardingi (1)
Andreev, 2014 (nomen nudum)
Original description species: Andreev, 2014 (nomen nudum)
Genus: Tezakia Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
Family: Tezakidae Andreev, Coates, Shelton, Cooper, Smith & Sansom, 2015
Order: Altholepidiformes
Thaiodus ruchae (12)
Cappetta, Buffetaut & Suteethorn, 1990
Original description species: Cappetta, Buffetaut & Suteethorn, 1990
Genus: Thaiodus Cappetta, Buffetaut & Suteethorn, 1990
Family: Thaiodontidae Cuny, Suteethorn, Kamha & Buffetaut, 2008
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Thaumas alifer (1)
Münster, 1842
Valid name: Pseudorhina alifera
Valid name: Pseudorhina alifera
Original description species: Münster, 1842
Genus: Thaumas Münster, 1842
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thaumas draco (1)
Münster, 1842
Valid name: Squatina draco
Valid name: Squatina draco
Original description species: Münster, 1842
Genus: Thaumas Münster, 1842
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thaumas fimbriatus (1)
Münster, 1843
Valid name: Pseudorhina alifera
Valid name: Pseudorhina alifera
Original description species: Münster, 1843
Genus: Thaumas Münster, 1842
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thaumas speciosus (2)
Meyer, 1856
Valid name: Pseudorhina alifera
Valid name: Pseudorhina alifera
Original description species: Meyer, 1856
Genus: Thaumas Münster, 1842
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thaumus (Squatina) alifer (1)
Münster, 1842
Valid name: Pseudorhina alifera
Valid name: Pseudorhina alifera
Original description species: Münster, 1842
Genus: Thaumus (Squatina)
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thectodus crenatus (2)
Plieninger, 1844
Valid name: Lissodus minimus
Valid name: Lissodus minimus
Original description species: Plieninger, 1844
Genus: Thectodus Plieninger In Meyer & Plieninger, 1844
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Thectodus glaber (2)
Plieninger, 1844
Valid name: Lissodus minimus
Valid name: Lissodus minimus
Original description species: Plieninger, 1844
Genus: Thectodus Plieninger In Meyer & Plieninger, 1844
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Thectodus inflatus (2)
Plieninger, 1844
Valid name: Lissodus minimus
Valid name: Lissodus minimus
Original description species: Plieninger, 1844
Genus: Thectodus Plieninger In Meyer & Plieninger, 1844
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Thectodus tricuspidatus (3)
Plieninger, 1844
Valid name: Lissodus minimus
Valid name: Lissodus minimus
Original description species: Plieninger, 1844
Genus: Thectodus Plieninger In Meyer & Plieninger, 1844
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Thiesus concavus (2)
Guinot, Cappetta & Adnet, 2014
Original description species: Guinot, Cappetta & Adnet, 2014
Genus: Thiesus Guinot, Cappetta & Adnet, 2014
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thoracodus emydinus (3)
Cope, 1883
Valid name: Janassa emydinus
Valid name: Janassa emydinus
Original description species: Cope, 1883
Genus: Thoracodus Cope, 1883
Family: Janassidae Jaekel, 1899
Order: Petalodontiformes
Subclass: Euchondrocephali
Thoralodus cabrieri (4)
Lehman, 1952
Original description species: Lehman, 1952
Genus: Thoralodus Lehmann, 1952
Subclass: Holocephali
Thrinacodus bicornis (1)
Newberry, 1879
Original description species: Newberry, 1879
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus bicuspidatus (6)
Ginter & Sun, 2007
Original description species: Ginter & Sun, 2007
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus cf. dziki (1)
Ginter, Duffin, Dean & Korn, 2014
Valid name: Thrinacodus dziki
Valid name: Thrinacodus dziki
Original description species: Ginter, Duffin, Dean & Korn, 2014
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus cf. ferox (5)
(Turner, 1982)
Valid name: Thrinacodus incurvus
Valid name: Thrinacodus incurvus
Original description species: (Turner, 1982)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus cf. gracia (2)
(Grogan & Lund, 2008)
Valid name: Thrinacodus gracia
Valid name: Thrinacodus gracia
Original description species: (Grogan & Lund, 2008)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus cf. incurvus (2)
(Newberry & Worthen, 1866)
Valid name: Thrinacodus incurvus
Valid name: Thrinacodus incurvus
Original description species: (Newberry & Worthen, 1866)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus cf. tranquillus (1)
Ginter, 2000
Valid name: Thrinacodus tranquillus
Valid name: Thrinacodus tranquillus
Original description species: Ginter, 2000
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus duplicatus (3)
(Newberry & Worthen, 1866)
Synonyms: Diplodus duplicatus
Original description species: (Newberry & Worthen, 1866)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus dziki (4)
Ginter, Duffin, Dean & Korn, 2014
Synonyms: Thrinacodus cf. dziki
Original description species: Ginter, Duffin, Dean & Korn, 2014
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus ferox (21)
(Turner, 1982)
Original description species: (Turner, 1982)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus gracia (8)
(Grogan & Lund, 2008)
Synonyms: Thrinacodus cf. gracia, Thrinacoselache gracia
Original description species: (Grogan & Lund, 2008)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus incurvus (12)
(Newberry & Worthen, 1866)
Synonyms: Diplodus incurvus, Thrinacodus cf. ferox, Thrinacodus cf. incurvus
Original description species: (Newberry & Worthen, 1866)
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus nanus (5)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus sp. (7)

Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus tranquillus (12)
Ginter, 2000
Synonyms: Thrinacodus cf. tranquillus
Original description species: Ginter, 2000
Genus: Thrinacodus St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacodus (Harpagodens) ferox (5)
(Turner, 1982)
Synonyms: Harpago ferox, Harpagodens ferox
Original description species: (Turner, 1982)
Genus: Thrinacodus (Harpagodens) St. John & Worthen, 1875
Family: Phoebodontidae Williams In Zangerl 1981
Order: Phoebodontiformes
Subclass: Elasmobranchii
Thrinacoselache gracia (2)
Grogan & Lund, 2008
Valid name: Thrinacodus gracia
Valid name: Thrinacodus gracia
Original description species: Grogan & Lund, 2008
Genus: Thrinacoselache Grogan & Lund, 2008
Family: Thrinacodontidae Grogan & Lund, 2008
Subclass: Elasmobranchii
Thrinax baumgartneri (4)
Pfeil, 1983
Valid name: Rolfodon fiedleri
Valid name: Rolfodon fiedleri
Original description species: Pfeil, 1983
Genus: Thrinax Pfeil, 1983
Family: Chlamydoselachidae Garman, 1884
Suborder: Chlamydoselachoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thrinax sp. (3)

Valid name: Proteothrinax sp.
Valid name: Proteothrinax sp.
Genus: Thrinax Pfeil, 1983
Family: Chlamydoselachidae Garman, 1884
Suborder: Chlamydoselachoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thyellina angusta (4)
Münster in Agassiz, 1838
Valid name: Scyliorhinus angustus
Valid name: Scyliorhinus angustus
Original description species: Münster in Agassiz, 1838
Genus: Thyellina Münster In Agassiz, 1843
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thyellina curtirostris (1)
Davis, 1887
Valid name: Palaeotriakis curtirostris
Valid name: Palaeotriakis curtirostris
Original description species: Davis, 1887
Genus: Thyellina Münster In Agassiz, 1843
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thyellina elongata (1)
Davis, 1887
Valid name: Scyliorhinus elongatus
Valid name: Scyliorhinus elongatus
Original description species: Davis, 1887
Genus: Thyellina Münster In Agassiz, 1843
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Thyellina prisca (3)
Agassiz, 1838
Valid name: Palaeospinax priscus
Valid name: Palaeospinax priscus
Original description species: Agassiz, 1838
Genus: Thyellina Münster In Agassiz, 1843
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tiaraju tenuis (3)
Richter, 2007
Original description species: Richter, 2007
Genus: Tiaraju Richter, 2005
Family: incert. fam.
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Tielikewatielepis sinensis (2)
Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Original description species: Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Genus: Tielikewatielepis Andreev, Zhao, Wang, Smith, Li, Cui, Zhu & Sansom, 2020
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida
Tikiodontus asymmetricus (1)
Bhat, Ray & Datta, 2018
Original description species: Bhat, Ray & Datta, 2018
Genus: Tikiodontus Bhat, Ray & Datta, 2018
Family: incert. fam.
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Tikiodontus oldhami (1)

Genus: Tikiodontus Bhat, Ray & Datta, 2018
Family: incert. fam.
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Tingaleus dakkai (5)
Cappetta, 1993
Original description species: Cappetta, 1993
Genus: Tingaleus Cappetta, 1993
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tingitanius tenuimandibulus (3)
Claeson, Underwood & Ward, 2013
Original description species: Claeson, Underwood & Ward, 2013
Genus: Tingitanius Claeson, Underwood & Ward, 2013
Family: Trygonorrhinidae Last, Séret & Naylor, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Titanichthys pharao (1)
Dames 1887
Valid name: Onchosaurus pharao
Valid name: Onchosaurus pharao
Original description species: Dames 1887
Genus: Titanichthys Dames, 1887
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Titanonarke megapterygia (4)
Marrama, Claeson, Carnevale & Kriwet, 2017
Original description species: Marrama, Claeson, Carnevale & Kriwet, 2017
Genus: Titanonarke De Carvalho, 2010
Family: Narcinidae Gill, 1862
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Titanonarke molini (11)
(Jaekel, 1894)
Synonyms: Narcine molini
Original description species: (Jaekel, 1894)
Genus: Titanonarke De Carvalho, 2010
Family: Narcinidae Gill, 1862
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tlalocbatos applegatei (3)
Brito, Villalobos-Segurab & Alvarado-Ortega, 2019
Original description species: Brito, Villalobos-Segurab & Alvarado-Ortega, 2019
Genus: Tlalocbatos Brito, Villalobos-Segurab & Alvarado-Ortega, 2019
Family: incert. fam.
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Toarcibatis alticarinata (2)
Delsate & Candoni, 2001
Valid name: Toarcibatis (Toarcibatis) alticarinata
Valid name: Toarcibatis (Toarcibatis) alticarinata
Original description species: Delsate & Candoni, 2001
Genus: Toarcibatis Delsate & Candoni, 2001
Family: Toarcibatidae Greenfield, Delsate & Candoni, 2022
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Toarcibatis brevicristata (2)
Delsate & Candoni, 2001
Valid name: Toarcibatis (Toarcibatis) brevicristata
Valid name: Toarcibatis (Toarcibatis) brevicristata
Original description species: Delsate & Candoni, 2001
Genus: Toarcibatis Delsate & Candoni, 2001
Family: Toarcibatidae Greenfield, Delsate & Candoni, 2022
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Toarcibatis elongata (5)
Delsate & Candoni, 2001
Valid name: Toarcibatis (Toarcibatis) elongata
Valid name: Toarcibatis (Toarcibatis) elongata
Original description species: Delsate & Candoni, 2001
Genus: Toarcibatis Delsate & Candoni, 2001
Family: Toarcibatidae Greenfield, Delsate & Candoni, 2022
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Toarcibatis multicristata (2)
Delsate & Candoni, 2001
Valid name: Toarcibatis (Toarcibatis) multicristata
Valid name: Toarcibatis (Toarcibatis) multicristata
Original description species: Delsate & Candoni, 2001
Genus: Toarcibatis Delsate & Candoni, 2001
Family: Toarcibatidae Greenfield, Delsate & Candoni, 2022
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Toarcibatis sp. (1)

Genus: Toarcibatis Delsate & Candoni, 2001
Family: Toarcibatidae Greenfield, Delsate & Candoni, 2022
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tobolamna levinae (2)
Zhelezko in Zhelezko & Kozlov, 1999
Synonyms: Borealotodus levinae
Original description species: Zhelezko in Zhelezko & Kozlov, 1999
Genus: Tobolamna Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tobolamna tobolensis (2)
Zhelezko in Zhelezko & Kozlov, 1999
Synonyms: Borealotodus tobolensis
Original description species: Zhelezko in Zhelezko & Kozlov, 1999
Genus: Tobolamna Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tomewingia problematica (5)
(Case & Cappetta, 1997)
Synonyms: Ewingia cf. problematica, Ewingia problematica
Original description species: (Case & Cappetta, 1997)
Genus: Tomewingia Case & Cappetta, 2013
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tomodus argutus (1)
Trautschold, 1879
Original description species: Trautschold, 1879
Genus: Tomodus Trautschold, 1879
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Tomodus convexus (2)
Davis, 1883 (ex Agassiz MSS.)
Valid name: Enniskillen convexus
Valid name: Enniskillen convexus
Original description species: Davis, 1883 (ex Agassiz MSS.)
Genus: Tomodus Trautschold, 1879
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Tomodus craigi (1)
De Koninck, 1878
Valid name: Psephodus magnus
Valid name: Psephodus magnus
Original description species: De Koninck, 1878
Genus: Tomodus Trautschold, 1879
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Tomodus laciniatus (1)
De Koninck, 1878
Original description species: De Koninck, 1878
Genus: Tomodus Trautschold, 1879
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Torpedo acarinata (4)
Adnet, 2006
Synonyms: Torpedo aff. acarinata
Original description species: Adnet, 2006
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo aff. acarinata (1)
Adnet, 2006
Valid name: Torpedo acarinata
Valid name: Torpedo acarinata
Original description species: Adnet, 2006
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo californica-f (1)
Ayres, 1855
Valid name: Tetronarce californica-f
Valid name: Tetronarce californica-f
Original description species: Ayres, 1855
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo chattica (1)
Reinecke, 2015
Original description species: Reinecke, 2015
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo dormaalensis (3)
Smith, 1999
Original description species: Smith, 1999
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo egertoni (1)
De Zigno, 1876
Valid name: Plesiozanobatus egertoni
Valid name: Plesiozanobatus egertoni
Original description species: De Zigno, 1876
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo gigantea (6)
Agassiz, 1835
Valid name: Platyrhina gigantea
Valid name: Platyrhina gigantea
Original description species: Agassiz, 1835
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo hilgendorfi (1)
Jaekel, 1904
Valid name: Eotorpedo hilgendorfi
Valid name: Eotorpedo hilgendorfi
Original description species: Jaekel, 1904
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo pessanti (3)
Adnet, 2006
Original description species: Adnet, 2006
Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo sp-f (23)

Genus: Torpedo Dumeril, 1805
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Torpedo (Tetronarce) sp-f (1)

Valid name: Tetronarce sp-f
Valid name: Tetronarce sp-f
Genus: Torpedo (Tetronarce)
Family: Torpedinidae Bonaparte, 1838
Order: Torpediniformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Toxoprion lecontei (6)
(Dean, 1897)
Synonyms: Edestus lecontei
Original description species: (Dean, 1897)
Genus: Toxoprion Hay, 1909
Family: Helicoprionidae Karpinsky, 1911
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Traquairius agkistrocephalus (1)
Lund & Grogan, 1997
Original description species: Lund & Grogan, 1997
Genus: Traquairius Lund & Grogan, 1997
Family: Traquairiidae Lund & Grogan, 1997
Superorder: Holocephalimorpha
Subclass: Holocephali
Traquairius nudus (3)
Lund & Grogan, 1997
Original description species: Lund & Grogan, 1997
Genus: Traquairius Lund & Grogan, 1997
Family: Traquairiidae Lund & Grogan, 1997
Superorder: Holocephalimorpha
Subclass: Holocephali
Traquairius sp. (1)

Genus: Traquairius Lund & Grogan, 1997
Family: Traquairiidae Lund & Grogan, 1997
Superorder: Holocephalimorpha
Subclass: Holocephali
Traquairius spinosus (1)
Lund & Grogan, 1997
Original description species: Lund & Grogan, 1997
Genus: Traquairius Lund & Grogan, 1997
Family: Traquairiidae Lund & Grogan, 1997
Superorder: Holocephalimorpha
Subclass: Holocephali
Triacis sp-f (2)

Valid name: Triakis sp-f
Valid name: Triakis sp-f
Genus: Triacis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triaenodon cf. obesus-f (1)
(Rüppell, 1837)
Valid name: Triaenodon obesus-f
Valid name: Triaenodon obesus-f
Original description species: (Rüppell, 1837)
Genus: Triaenodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triaenodon obesus-f (2)
(Rüppell, 1837)
Synonyms: Triaenodon cf. obesus-f
Original description species: (Rüppell, 1837)
Genus: Triaenodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triaenodon willei (1)
Herman & Van Den Eeckhaut, 2010
Original description species: Herman & Van Den Eeckhaut, 2010
Genus: Triaenodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis acre (1)
(Probst, 1879)
Valid name: Pachyscyllium dachiardii
Valid name: Pachyscyllium dachiardii
Original description species: (Probst, 1879)
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis aff. costamagnai (1)
Cappetta & Nolf, 1991
Valid name: Iago costamagnai
Valid name: Iago costamagnai
Original description species: Cappetta & Nolf, 1991
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis aff. wardi (2)
Cappetta, 1976
Valid name: Triakis wardi
Valid name: Triakis wardi
Original description species: Cappetta, 1976
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis angustidens (6)
Cappetta, 1973
Valid name: Iago angustidens
Valid name: Iago angustidens
Original description species: Cappetta, 1973
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis antunesi (4)
Noubhani & Cappetta, 1997
Original description species: Noubhani & Cappetta, 1997
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis beali (2)
Jordan & Gilbert, 1919
Original description species: Jordan & Gilbert, 1919
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis cabindensis (9)
(Leriche, 1927)
Synonyms: Scyliorhinus aff. cabindensis, Scyliorhinus cabindensis, Scyllium cabindense
Original description species: (Leriche, 1927)
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis cf. costamagnai (2)
Cappetta & Nolf, 1991
Valid name: Iago costamagnai
Valid name: Iago costamagnai
Original description species: Cappetta & Nolf, 1991
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis cf. semifasciata-f (1)
Girard, 1855
Valid name: Triakis semifasciata-f
Valid name: Triakis semifasciata-f
Original description species: Girard, 1855
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis cf. wardi (1)
Cappetta, 1976
Valid name: Triakis wardi
Valid name: Triakis wardi
Original description species: Cappetta, 1976
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis chalossensis (4)
Adnet, 2006
Original description species: Adnet, 2006
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis costamagnai (1)
Cappetta & Nolf, 1991
Valid name: Iago costamagnai
Valid name: Iago costamagnai
Original description species: Cappetta & Nolf, 1991
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis curtirostris (2)
(Davis, 1887)
Valid name: Palaeotriakis curtirostris
Valid name: Palaeotriakis curtirostris
Original description species: (Davis, 1887)
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis kelleri (5)
Hovestadt & Hovestadt-Euler, 2002
Original description species: Hovestadt & Hovestadt-Euler, 2002
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis muelleri (2)
Leder, 2013
Original description species: Leder, 2013
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis rutimeyeri (4)
Casier, 1958
Original description species: Casier, 1958
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis semifasciata-f (9)
Girard, 1855
Synonyms: Triakis cf. semifasciata-f
Original description species: Girard, 1855
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis sp-f (31)

Synonyms: Triacis sp-f
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis tanoutensis (3)
Noubhani & Cappetta, 1997
Original description species: Noubhani & Cappetta, 1997
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triakis wardi (13)
Cappetta, 1976
Synonyms: Triakis aff. wardi, Triakis cf. wardi
Original description species: Cappetta, 1976
Genus: Triakis Müller & Henle, 1838
Family: Triakidae Gray, 1851
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triasocapsula becksmanni (2)
Ortlam, 1967
Valid name: Palaeoxyris becksmanni
Valid name: Palaeoxyris becksmanni
Original description species: Ortlam, 1967
Genus: Triasocapsula Ortlam, 1967
Subclass: Elasmobranchii
Tribodus cf. limae (1)
Brito & Ferreira, 1989
Valid name: Tribodus limae
Valid name: Tribodus limae
Original description species: Brito & Ferreira, 1989
Genus: Tribodus Brito & Ferreira, 1989
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tribodus limae (16)
Brito & Ferreira, 1989
Synonyms: Tribodus cf. limae
Original description species: Brito & Ferreira, 1989
Genus: Tribodus Brito & Ferreira, 1989
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tribodus morlati (7)
(Landemaine, 1991)
Synonyms: Protohypolophites morlati
Original description species: (Landemaine, 1991)
Genus: Tribodus Brito & Ferreira, 1989
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tribodus sp. (15)

Genus: Tribodus Brito & Ferreira, 1989
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tribodus tunisiensis (3)
Cuny, Ouaja, Srarfi, Schmitz, Buffetaut & Benton, 2004
Original description species: Cuny, Ouaja, Srarfi, Schmitz, Buffetaut & Benton, 2004
Genus: Tribodus Brito & Ferreira, 1989
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Trigon pastinacoides (1)
Van Beneden, 1873
Valid name: Dasyatis pastinacoides
Valid name: Dasyatis pastinacoides
Original description species: Van Beneden, 1873
Genus: Trigon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonodus major (1)
Newberry & Worthen, 1866
Valid name: Deltodus angularis
Valid name: Deltodus angularis
Original description species: Newberry & Worthen, 1866
Genus: Trigonodus Winkler, 1876
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonodus minor (1)
Newberry & Worthen, 1866
Original description species: Newberry & Worthen, 1866
Genus: Trigonodus Winkler, 1876
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonodus minutus (1)
Winkler, 1880
Valid name: Physogaleus minutus
Valid name: Physogaleus minutus
Original description species: Winkler, 1880
Genus: Trigonodus Winkler, 1876
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonodus primus (1)
Winkler, 1874
Valid name: Squatina prima
Valid name: Squatina prima
Original description species: Winkler, 1874
Genus: Trigonodus Winkler, 1876
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonodus secundus (1)
Winkler, 1874
Valid name: Physogaleus secundus
Valid name: Physogaleus secundus
Original description species: Winkler, 1874
Genus: Trigonodus Winkler, 1876
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonodus tertius (1)
Winkler, 1874
Valid name: Physogaleus tertius
Valid name: Physogaleus tertius
Original description species: Winkler, 1874
Genus: Trigonodus Winkler, 1876
Family: Squatinidae Bonaparte, 1838
Order: Squatiniformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonognathus aff. kabeyai-f (3)
Mochizuki & Ohe, 1990
Valid name: Trigonognathus kabeyai-f
Valid name: Trigonognathus kabeyai-f
Original description species: Mochizuki & Ohe, 1990
Genus: Trigonognathus Mochizuki & Ohe, 1990
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonognathus sp-f (3)

Genus: Trigonognathus Mochizuki & Ohe, 1990
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonognathus virginiae (5)
Cappetta & Adnet, 2001
Original description species: Cappetta & Adnet, 2001
Genus: Trigonognathus Mochizuki & Ohe, 1990
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonorhina dezignii (1)
(Heckel, 1853)
Valid name: Pseudorhinobatos dezignii
Valid name: Pseudorhinobatos dezignii
Original description species: (Heckel, 1853)
Genus: Trigonorhina
Family: Trygonorrhinidae Last, Séret & Naylor, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonotodus alteri (2)
Kozlov, 2001
Original description species: Kozlov, 2001
Genus: Trigonotodus Kozlov In Zhelezko & Kozlov, 1999
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonotodus cf. tusbairicus (1)
Kozlov in Zhelezko & Kozlov, 1999
Valid name: Trigonotodus tusbairicus
Valid name: Trigonotodus tusbairicus
Original description species: Kozlov in Zhelezko & Kozlov, 1999
Genus: Trigonotodus Kozlov In Zhelezko & Kozlov, 1999
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonotodus tusbaericus (1)
Kozlov in Zhelezko & Kozlov, 1999
Valid name: Trigonotodus tusbairicus
Valid name: Trigonotodus tusbairicus
Original description species: Kozlov in Zhelezko & Kozlov, 1999
Genus: Trigonotodus Kozlov In Zhelezko & Kozlov, 1999
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trigonotodus tusbairicus (6)
Kozlov in Zhelezko & Kozlov, 1999
Synonyms: Trigonotodus cf. tusbairicus, Trigonotodus tusbaericus
Original description species: Kozlov in Zhelezko & Kozlov, 1999
Genus: Trigonotodus Kozlov In Zhelezko & Kozlov, 1999
Family: Cretoxyrhinidae Glickman, 1958
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Triodus aeduorum (1)
Luccisano, Pradel, Amiot, Gand, Steyer & Cuny, 2021
Original description species: Luccisano, Pradel, Amiot, Gand, Steyer & Cuny, 2021
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus aff. palatinus (2)
Hampe, 1989
Valid name: Triodus palatinus
Valid name: Triodus palatinus
Original description species: Hampe, 1989
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus carinatus (21)
(Fritsch, 1890)
Synonyms: Bohemiacanthus carinatus, Pleuracanthus carinatus, Triodus cf. carinatus, Xenacanthus carinatus
Original description species: (Fritsch, 1890)
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus cf. carinatus (1)
(Fritsch, 1890)
Valid name: Triodus carinatus
Valid name: Triodus carinatus
Original description species: (Fritsch, 1890)
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus cf. palatinus (1)
Hampe, 1989
Valid name: Triodus palatinus
Valid name: Triodus palatinus
Original description species: Hampe, 1989
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus cf. sessilis (5)
Jordan, 1849
Valid name: Triodus sessilis
Valid name: Triodus sessilis
Original description species: Jordan, 1849
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus elpia (1)
Johnson & Thayer, 2010
Original description species: Johnson & Thayer, 2010
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus frossardi (3)
(Gaudry, 1883) (nomen nudum)
Original description species: (Gaudry, 1883) (nomen nudum)
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus kraetschmeri (9)
Hampe, 1989
Original description species: Hampe, 1989
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus lauterensis (7)
Hampe, 1989
Original description species: Hampe, 1989
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus moorei (1)
(Woodward, 1889)
Valid name: Mooreodontus moorei
Valid name: Mooreodontus moorei
Original description species: (Woodward, 1889)
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus obscurus (6)
Hampe, 1989
Original description species: Hampe, 1989
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus palatinus (15)
Hampe, 1989
Synonyms: Triodus aff. palatinus, Triodus cf. palatinus
Original description species: Hampe, 1989
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus pulchellus (2)
(Davis, 1880)
Synonyms: Pleuracanthus pulchellus
Original description species: (Davis, 1880)
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus richterae (2)
Pauliv, Martinelli, Francischini, Dentzien-Dias, Soares, Schultz & Ribeiro, 2017
Original description species: Pauliv, Martinelli, Francischini, Dentzien-Dias, Soares, Schultz & Ribeiro, 2017
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus serratus (4)
(Davis, 1892)
Synonyms: Pleuracanthus serratus, Xenacanthus serratus
Original description species: (Davis, 1892)
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus sessilis (25)
Jordan, 1849
Synonyms: Pleuracanthus sessilis, Triodus cf. sessilis, Xenacanthus sessilis
Original description species: Jordan, 1849
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus sp. (18)

Synonyms: Bibractopiscis niger
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Triodus teberdaensis (3)
Hampe & Ivanov, 2007
Original description species: Hampe & Ivanov, 2007
Genus: Triodus Jordan, 1849
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Tristichius arcuatus (1)
Agassiz, 1837
Original description species: Agassiz, 1837
Genus: Tristichius Agassiz, 1837
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tristychius arcuatus (23)
Agassiz, 1837
Synonyms: Ptychacanthus sublaevis
Original description species: Agassiz, 1837
Genus: Tristychius Agassiz, 1837
Family: Tristychiidae Moy-Thomas, 1936
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tristychius fimbriatus (1)
Stock, 1883
Valid name: Harpacanthus fimbriatus
Valid name: Harpacanthus fimbriatus
Original description species: Stock, 1883
Genus: Tristychius Agassiz, 1837
Family: Tristychiidae Moy-Thomas, 1936
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tristychius minor (3)
Portlock, 1843
Original description species: Portlock, 1843
Genus: Tristychius Agassiz, 1837
Family: Tristychiidae Moy-Thomas, 1936
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tristychius semistriatus (7)
(Traquair, 1894)
Synonyms: Euphyacanthus semistriatus
Original description species: (Traquair, 1894)
Genus: Tristychius Agassiz, 1837
Family: Tristychiidae Moy-Thomas, 1936
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Tristychius sp. (4)

Genus: Tristychius Agassiz, 1837
Family: Tristychiidae Moy-Thomas, 1936
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Troglocladodus trimblei (1)
Hodnett, Toomey, Egli, Ward, Wood, Olson, Tolleson, Tweet & Santucci, 2024
Original description species: Hodnett, Toomey, Egli, Ward, Wood, Olson, Tolleson, Tweet & Santucci, 2024
Genus: Troglocladodus Hodnett, Toomey, Egli, Ward, Wood, Olson, Tolleson, Tweet & Santucci, 2024
Family: Ctenacanthidae Dean, 1909
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Truyolsodontos estauni (2)
Bernárdez, 2018
Original description species: Bernárdez, 2018
Genus: Truyolsodontos Bernárdez, 2018
Family: Truyolsodontidae Bernárdez, 2018
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon aff. alveolatus (1)
Leriche, 1942
Valid name: Dasyatis alveolata
Valid name: Dasyatis alveolata
Original description species: Leriche, 1942
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon alveolatus (2)
Leriche, 1942
Valid name: Dasyatis alveolata
Valid name: Dasyatis alveolata
Original description species: Leriche, 1942
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon brevicauda (1)
Heckel, 1851
Valid name: Arechia crassicaudata
Valid name: Arechia crassicaudata
Original description species: Heckel, 1851
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon carolinensis (1)
Emmons, 1858
Valid name: Dasyatis carolinensis
Valid name: Dasyatis carolinensis
Original description species: Emmons, 1858
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon cavernosus (5)
(Probst, 1877)
Valid name: Taeniurops cavernosus
Valid name: Taeniurops cavernosus
Original description species: (Probst, 1877)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon cf. rugosus (1)
(Probst, 1877)
Valid name: Dasyatis rugosa
Valid name: Dasyatis rugosa
Original description species: (Probst, 1877)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon de zignii (1)
(Heckel, 1853)
Valid name: Pseudorhinobatos dezignii
Valid name: Pseudorhinobatos dezignii
Original description species: (Heckel, 1853)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon dux (1)
(Cope, 1867)
Valid name: Dasyatis dux
Valid name: Dasyatis dux
Original description species: (Cope, 1867)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon ensifer (2)
Davis, 1888
Valid name: Ikamauius ensifer
Valid name: Ikamauius ensifer
Original description species: Davis, 1888
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon gazolae (1)
Agassiz, 1835
Valid name: Tethytrygon muricatus
Valid name: Tethytrygon muricatus
Original description species: Agassiz, 1835
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon gazzolae (4)
Agassiz, 1835
Valid name: Tethytrygon muricatus
Valid name: Tethytrygon muricatus
Original description species: Agassiz, 1835
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon gesneri-f (3)
(Cuvier, 1829)
Valid name: Bathytoshia centroura-f
Valid name: Bathytoshia centroura-f
Original description species: (Cuvier, 1829)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon jaeckeli (1)
Leriche, 1905
Valid name: Casierabatis jaekeli
Valid name: Casierabatis jaekeli
Original description species: Leriche, 1905
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon jaekeli (4)
Leriche, 1905
Valid name: Casierabatis jaekeli
Valid name: Casierabatis jaekeli
Original description species: Leriche, 1905
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon muricata (3)
Volta, 1796
Valid name: Tethytrygon muricatus
Valid name: Tethytrygon muricatus
Original description species: Volta, 1796
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon muricatus (2)
(Volta, 1796)
Valid name: Tethytrygon muricatus
Valid name: Tethytrygon muricatus
Original description species: (Volta, 1796)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon oblongus (5)
Agassiz, 1835
Valid name: Arechia crassicaudata
Valid name: Arechia crassicaudata
Original description species: Agassiz, 1835
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon pastinacoides-f (3)
Bleeker, 1852
Valid name: Maculabatis pastinacoides-f
Valid name: Maculabatis pastinacoides-f
Original description species: Bleeker, 1852
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon rugosus (3)
(Probst, 1877)
Valid name: Dasyatis rugosa
Valid name: Dasyatis rugosa
Original description species: (Probst, 1877)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon sinhaleyus (1)
Deraniyagala, 1969
Valid name: Dasyatis sinhaleyus
Valid name: Dasyatis sinhaleyus
Original description species: Deraniyagala, 1969
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon sp-f (16)

Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon strangulatus (2)
(Probst, 1877)
Valid name: Dasyatis strangulata
Valid name: Dasyatis strangulata
Original description species: (Probst, 1877)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon targionii (1)
Lawley, 1876
Original description species: Lawley, 1876
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon thalassia fossilis (2)
Jaekel, 1890
Valid name: Bathytoshia centroura-f
Valid name: Bathytoshia centroura-f
Original description species: Jaekel, 1890
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon thalassia-f (1)
Müller & Henle, 1841
Valid name: Bathytoshia centroura-f
Valid name: Bathytoshia centroura-f
Original description species: Müller & Henle, 1841
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon vorstmani (1)
Beaufort, 1926
Valid name: Protohimantura vorstmani
Valid name: Protohimantura vorstmani
Original description species: Beaufort, 1926
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon zignii (1)
(Heckel, 1853)
Valid name: Pseudorhinobatos dezignii
Valid name: Pseudorhinobatos dezignii
Original description species: (Heckel, 1853)
Genus: Trygon Cuvier, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygon (Taeniura) muricatus (1)
(Volta, 1796)
Valid name: Tethytrygon muricatus
Valid name: Tethytrygon muricatus
Original description species: (Volta, 1796)
Genus: Trygon (Taeniura)
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygonobatus crassicaudatus (1)
Blainville, 1818
Valid name: Arechia crassicaudata
Valid name: Arechia crassicaudata
Original description species: Blainville, 1818
Genus: Trygonobatus Blainville, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygonobatus vulgaris (1)
Blainville, 1818
Valid name: Tethytrygon muricatus
Valid name: Tethytrygon muricatus
Original description species: Blainville, 1818
Genus: Trygonobatus Blainville, 1816
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygonorhina de zignii (2)
Heckel, 1853
Valid name: Pseudorhinobatos dezignii
Valid name: Pseudorhinobatos dezignii
Original description species: Heckel, 1853
Genus: Trygonorhina Müller & Henle, 1838
Family: Trygonorrhinidae Last, Séret & Naylor, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Trygonorhina sp-f (1)

Genus: Trygonorhina Müller & Henle, 1838
Family: Trygonorrhinidae Last, Séret & Naylor, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tuberospina nataliae (3)
Lebedev, 1995
Original description species: Lebedev, 1995
Genus: Tuberospina Lebedev, 1995
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii
Tubulacanthus sulcatus (9)
Fritsch, 1889
Original description species: Fritsch, 1889
Genus: Tubulacanthus Fritisch, 1889
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii
Turania andrusovi (3)
Kozlov, 2001
Original description species: Kozlov, 2001
Genus: Turania Kozlov, 2001
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Turania sp. (1)

Genus: Turania Kozlov, 2001
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Turnovichthys magnus (4)
Štamberg, 2001
Original description species: Štamberg, 2001
Genus: Turnovichthys Štamberg, 2001
Superfamily: Ctenacanthoidea
Cohort: Euselachii
Subclass: Elasmobranchii
Turoniabatis cappettai (12)
Landemaine, 1991
Synonyms: Germanobatos ornatus, Turoniabatis ornatus
Original description species: Landemaine, 1991
Genus: Turoniabatis Landemaine, 1991
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Turoniabatis ornatus (4)
(Müller& Diedrich, 1991)
Valid name: Turoniabatis cappettai
Valid name: Turoniabatis cappettai
Original description species: (Müller& Diedrich, 1991)
Genus: Turoniabatis Landemaine, 1991
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Turoniabatis sp. (2)

Genus: Turoniabatis Landemaine, 1991
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Tuvalepis schultzei (2)
Zigaite & Karatajute-Talimaa, 2008
Original description species: Zigaite & Karatajute-Talimaa, 2008
Genus: Tuvalepis Zigaite & Karatajute-Talimaa, 2008
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii