Baharipristis bastetiae (6)
Werner, 1989
Original description species: Werner, 1989
Genus: Baharipristis Werner, 1989
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bahariyodon bartheli (8)
(Werner, 1989)
Synonyms: Bahariyodon (Lissodus) bartheli, Lissodus bartheli
Original description species: (Werner, 1989)
Genus: Bahariyodon Duffin, 2001
Family: Polyacrodontidae Glickman, 1964
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bahariyodon (Lissodus) bartheli (1)
(Werner, 1989)
Valid name: Bahariyodon bartheli
Valid name: Bahariyodon bartheli
Original description species: (Werner, 1989)
Genus: Bahariyodon (Lissodus)
Family: Polyacrodontidae Glickman, 1964
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bandringa herdinae (2)
Zangerl, 1979
Valid name: Bandringa rayi
Valid name: Bandringa rayi
Original description species: Zangerl, 1979
Genus: Bandringa Zangerl, 1969
Family: Bandringidae Zangerl, 1969
Superfamily: Ctenacanthoidea
Cohort: Euselachii
Subclass: Elasmobranchii
Bandringa rayi (5)
Zangerl, 1969
Synonyms: Bandringa herdinae
Original description species: Zangerl, 1969
Genus: Bandringa Zangerl, 1969
Family: Bandringidae Zangerl, 1969
Superfamily: Ctenacanthoidea
Cohort: Euselachii
Subclass: Elasmobranchii
Barbclabornia cf. luederensis (1)
(Berman, 1970)
Valid name: Barbclabornia luedersensis
Valid name: Barbclabornia luedersensis
Original description species: (Berman, 1970)
Genus: Barbclabornia Johnson, 2003
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Barbclabornia luedersensis (16)
(Berman, 1970)
Synonyms: Barbclabornia cf. luederensis, Xenacanthus luedersensis
Original description species: (Berman, 1970)
Genus: Barbclabornia Johnson, 2003
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Batacanthus baculiformis (1)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Batacanthus St. John & Worthen, 1875
Family: incert. fam.
Order: Ichthyodorulites
Batacanthus gigas (1)
Branson, 1916
Original description species: Branson, 1916
Genus: Batacanthus St. John & Worthen, 1875
Family: incert. fam.
Order: Ichthyodorulites
Batacanthus sp. (1)

Genus: Batacanthus St. John & Worthen, 1875
Family: incert. fam.
Order: Ichthyodorulites
Batacanthus stellatus (1)
Newberry & Worthen,
Original description species: Newberry & Worthen,
Genus: Batacanthus St. John & Worthen, 1875
Family: incert. fam.
Order: Ichthyodorulites
Bates biserratus (2)
Probst, 1877
Valid name: Myliobatis biserratus
Valid name: Myliobatis biserratus
Original description species: Probst, 1877
Genus: Bates Probst, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bates fluitans (2)
Probst, 1877
Valid name: Myliobatis fluitans
Valid name: Myliobatis fluitans
Original description species: Probst, 1877
Genus: Bates Probst, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bates lineatus (2)
Probst, 1877
Valid name: Myliobatis lineatus
Valid name: Myliobatis lineatus
Original description species: Probst, 1877
Genus: Bates Probst, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bates spectabilis (2)
Probst, 1877
Valid name: Myliobatis spectabilis
Valid name: Myliobatis spectabilis
Original description species: Probst, 1877
Genus: Bates Probst, 1877
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bathytheristes gracilis (1)
Duffin, 1995
Original description species: Duffin, 1995
Genus: Bathytheristes Duffin, 1995
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Bavariscyllium tischlingeri (4)
Thies, 2005
Original description species: Thies, 2005
Genus: Bavariscyllium Thies, 2005
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bdellodus bollensis (2)
Quenstedt, 1882
Original description species: Quenstedt, 1882
Genus: Bdellodus Quenstedt, 1882
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bdellodus sp. (1)

Genus: Bdellodus Quenstedt, 1882
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii
Bealbonn rogaire (1)
Lund & Grogan, 2004
Original description species: Lund & Grogan, 2004
Genus: Bealbonn Lund & Grogan, 2004
Family: Gregoriidae Lund & Grogan, 2004
Subclass: Euchondrocephali
Belantsea montana (3)
Lund, 1989
Original description species: Lund, 1989
Genus: Belantsea Lund, 1989
Family: Belantseidae Lund, 1989
Order: Petalodontiformes
Subclass: Euchondrocephali
Belantsea occidentalis (1)

Genus: Belantsea Lund, 1989
Family: Belantseidae Lund, 1989
Order: Petalodontiformes
Subclass: Euchondrocephali
Belemnobatis aff. sismondae (1)
Thiollière, 1852
Valid name: Belemnobatis sismondae
Valid name: Belemnobatis sismondae
Original description species: Thiollière, 1852
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis aff. variabilis (1)
Underwood & Rees, 2002
Valid name: Belemnobatis variabilis
Valid name: Belemnobatis variabilis
Original description species: Underwood & Rees, 2002
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis annectans (1)
(Woodward, 1919)
Valid name: Protospinax annectans
Valid name: Protospinax annectans
Original description species: (Woodward, 1919)
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis aominensis (1)
Cuny, Srisuk, Khamha, Suteethorn & Tong, 2009
Original description species: Cuny, Srisuk, Khamha, Suteethorn & Tong, 2009
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis cf. moorbergensis (2)
(Thies, 1983)
Valid name: Belemnobatis moorbergensis
Valid name: Belemnobatis moorbergensis
Original description species: (Thies, 1983)
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis cf. picteti (1)
(Cappetta, 1975)
Valid name: Rhinobatos picteti
Valid name: Rhinobatos picteti
Original description species: (Cappetta, 1975)
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis kermacki (1)
Underwood & Ward, 2004
Original description species: Underwood & Ward, 2004
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis moorbergensis (5)
(Thies, 1983)
Synonyms: Belemnobatis cf. moorbergensis, Spathobatis moorbergensis
Original description species: (Thies, 1983)
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis morinicus (4)
(Sauvage 1873)
Original description species: (Sauvage 1873)
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis noviodunumensis (1)
Delsate & Candoni, 2001
Original description species: Delsate & Candoni, 2001
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis sismondae (12)
Thiollière, 1852
Synonyms: Belemnobatis aff. sismondae
Original description species: Thiollière, 1852
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis sp. (11)

Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis stahli (1)
Underwood & Ward, 2004
Original description species: Underwood & Ward, 2004
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis variabilis (4)
Underwood & Rees, 2002
Synonyms: Belemnobatis aff. variabilis
Original description species: Underwood & Rees, 2002
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belemnobatis werneri (4)
(Thies, 1983)
Synonyms: Spathobatis werneri
Original description species: (Thies, 1983)
Genus: Belemnobatis Thiollière, 1852
Family: Spathobatidae Underwood, 2006
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Belgorodon bogolubovi (1)
(Nessov, 1986)
Synonyms: Chimaera bogolubovi
Original description species: (Nessov, 1986)
Genus: Belgorodon Popov & Machalski, 2014
Family: Chimaeridae Bonaparte, 1831
Order: Chimaeriformes
Subclass: Holocephali
Belgorodon sp. (1)

Genus: Belgorodon Popov & Machalski, 2014
Family: Chimaeridae Bonaparte, 1831
Order: Chimaeriformes
Subclass: Holocephali
Bethacanthus insolitus (1)
Zangerl, 1990
Original description species: Zangerl, 1990
Genus: Bethacanthus Zangerl, 1990
Family: Stethacanthidae Lund, 1974
Order: Symmoriiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bibractopiscis niger (1)
Heyler & Poplin, 1982
Original description species: Heyler & Poplin, 1982
Genus: Bibractopiscis Heyler & Poplin, 1982
Order: Cladodontida
Subclass: Elasmobranchii
Bidentia bidens (2)
(Quenstedt, 1851)
Valid name: Procestration semirugosus
Valid name: Procestration semirugosus
Original description species: (Quenstedt, 1851)
Genus: Bidentia Musper, 1920
Family: Heterodontidae Gray, 1851
Order: Heterodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Biforisodus major (1)
Daimeries, 1888
Valid name: Megasqualus orpiensis
Valid name: Megasqualus orpiensis
Original description species: Daimeries, 1888
Genus: Biforisodus Daimeries, 1888
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Biforisodus minor (1)
Daimeries, 1888
Valid name: Squalus minor
Valid name: Squalus minor
Original description species: Daimeries, 1888
Genus: Biforisodus Daimeries, 1888
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Biropristis landbecki (5)
Suárez & Cappetta, 2004
Original description species: Suárez & Cappetta, 2004
Genus: Biropristis Suárez & Cappetta, 2004
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bobbodus schaefferi (1)
Zangerl, 1981
Original description species: Zangerl, 1981
Genus: Bobbodus Zangerl, 1981
Family: Eugeneodontidae Zangerl, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bobbodus schafferi (1)
Zangerl, 1981
Original description species: Zangerl, 1981
Genus: Bobbodus Zangerl, 1981
Family: Eugeneodontidae Zangerl, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bobbodus sp. (2)

Genus: Bobbodus Zangerl, 1981
Family: Eugeneodontidae Zangerl, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bobbodus xerxesi (1)
Hampe, Hairapetian, Dorka, Witzmann, Akbari & Korn, 2013
Original description species: Hampe, Hairapetian, Dorka, Witzmann, Akbari & Korn, 2013
Genus: Bobbodus Zangerl, 1981
Family: Eugeneodontidae Zangerl, 1981
Superfamily: Caseodontoidae
Order: Eugeneodontiformes
Subclass: Euchondrocephali
Bohemiacanthus carinatus (14)
(Fritsch, 1890)
Valid name: Triodus carinatus
Valid name: Triodus carinatus
Original description species: (Fritsch, 1890)
Genus: Bohemiacanthus Schneider, 1994
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bohemiacanthus oelbergensis (6)
(Fritsch, 1890)
Original description species: (Fritsch, 1890)
Genus: Bohemiacanthus Schneider, 1994
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bohemiacanthus sp. (6)

Genus: Bohemiacanthus Schneider, 1994
Family: Xenacanthidae Fritsch, 1889
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bolivacanthus sagitalis (4)
Gagnier, Turner, Friman,Suarez-Riglos & Janvier, 1988
Original description species: Gagnier, Turner, Friman,Suarez-Riglos & Janvier, 1988
Genus: Bolivacanthus Gagnier, Turner, Friman,Suarez-Riglos & Janvier, 1988
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii
Borealotodus benyamovski (1)
Zhelezko in Zhelezko & Kozlov, 1999
Original description species: Zhelezko in Zhelezko & Kozlov, 1999
Genus: Borealotodus Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus borealis (3)
Zhelezko in Zhelezko & Kozlov, 1999
Synonyms: Mennerotodus borealis
Original description species: Zhelezko in Zhelezko & Kozlov, 1999
Genus: Borealotodus Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus karpinski (1)
(Menner, 1928)
Valid name: Araloselachus cuspidatus
Valid name: Araloselachus cuspidatus
Original description species: (Menner, 1928)
Genus: Borealotodus Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus karpinskii (1)
(Menner, 1928)
Valid name: Araloselachus cuspidatus
Valid name: Araloselachus cuspidatus
Original description species: (Menner, 1928)
Genus: Borealotodus Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus levinae (1)
Zhelezko in Zhelezko & Kozlov, 1999
Valid name: Tobolamna levinae
Valid name: Tobolamna levinae
Original description species: Zhelezko in Zhelezko & Kozlov, 1999
Genus: Borealotodus Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borealotodus tobolensis (1)
(Zhelezko in Zhelezko & Kozlov, 1999)
Valid name: Tobolamna tobolensis
Valid name: Tobolamna tobolensis
Original description species: (Zhelezko in Zhelezko & Kozlov, 1999)
Genus: Borealotodus Zhelezko In Zhelezko & Kozlov, 1999
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borisocautus invictus (2)
Minikh & Andrushkevich, 2017
Original description species: Minikh & Andrushkevich, 2017
Genus: Borisocautus Minikh & Andrushkevich, 2017
Family: Xenosynechodontidae Glickman, 1980
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Borodinopristis ackermani (2)
Case, Schwimmer, Borodin & Leggett, 2001
Synonyms: Borodinopristis cf. ackermani
Original description species: Case, Schwimmer, Borodin & Leggett, 2001
Genus: Borodinopristis Case, 1987
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis cf. ackermani (1)
Case, Schwimmer, Borodin & Leggett, 2001
Valid name: Borodinopristis ackermani
Valid name: Borodinopristis ackermani
Original description species: Case, Schwimmer, Borodin & Leggett, 2001
Genus: Borodinopristis Case, 1987
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis schwimmeri (5)
Case, 1987
Original description species: Case, 1987
Genus: Borodinopristis Case, 1987
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis shannoni (1)
Case, Cook, Wilson & Borodin, 2012
Original description species: Case, Cook, Wilson & Borodin, 2012
Genus: Borodinopristis Case, 1987
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Borodinopristis sp. (1)

Genus: Borodinopristis Case, 1987
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus alvarezi (1)
Bernardez, 2002
Valid name: nomen nudum
Valid name: nomen nudum
Original description species: Bernardez, 2002
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus bighornensis (1)
Case, 1987
Valid name: Cantioscyllium bighornensis
Valid name: Cantioscyllium bighornensis
Original description species: Case, 1987
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus estesi (1)
(Herman, 1977)
Valid name: Cantioscyllium estesi
Valid name: Cantioscyllium estesi
Original description species: (Herman, 1977)
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus greeni (2)
Cappetta, 1973
Valid name: Chiloscyllium greeni
Valid name: Chiloscyllium greeni
Original description species: Cappetta, 1973
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus hornerstownensis (1)
Case, Borodin & Leggett, 2001
Original description species: Case, Borodin & Leggett, 2001
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus roklumensis (1)
Thies, 1981
Valid name: Paraginglymostoma roklumensis
Valid name: Paraginglymostoma roklumensis
Original description species: Thies, 1981
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus sp. (10)

Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachaelurus templeuvensis (1)
Moreau & Mathis, 2000
Original description species: Moreau & Mathis, 2000
Genus: Brachaelurus Ogilby, 1907
Family: Brachaeluridae Applegate, 1974
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bracheria wallernensis (1)
Pfeil, 1984 (Nomen Nudum)
Original description species: Pfeil, 1984 (Nomen Nudum)
Genus: Bracheria Pfeil, 1984
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bracheria wallerniensis (2)
Pfeil, 1984
Valid name: nomen nudum
Valid name: nomen nudum
Original description species: Pfeil, 1984
Genus: Bracheria Pfeil, 1984
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachiacanthus semiplanus (6)
Fritsch, 1889
Synonyms: Brachyacanthus semiplanus
Original description species: Fritsch, 1889
Genus: Brachiacanthus Fritsch, 1889
Family: incert. fam.
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Brachyacanthus semiplanus (2)
Fritsch, 1889
Valid name: Brachiacanthus semiplanus
Valid name: Brachiacanthus semiplanus
Original description species: Fritsch, 1889
Genus: Brachyacanthus Fritsch, 1889
Family: incert. fam.
Order: Xenacanthiformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Brachycarcharias aff. atlasi (1)
(Arambourg, 1952)
Valid name: Brachycarcharias atlasi
Valid name: Brachycarcharias atlasi
Original description species: (Arambourg, 1952)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias atlasi (11)
(Arambourg, 1952)
Synonyms: Brachycarcharias aff. atlasi, Carcharias aff. atlasi, Carcharias atlasi, Odontaspis aff. atlasi, Odontaspis atlasi, Odontaspis substriata atlasi
Original description species: (Arambourg, 1952)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias cf. twiggsensis (3)
(Case, 1981)
Valid name: Brachycarcharias twiggsensis
Valid name: Brachycarcharias twiggsensis
Original description species: (Case, 1981)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias koerti (26)
(Stromer, 1910)
Synonyms: Carcharias aff. koerti , Carcharias koerti, Odontaspis cf. koerti, Odontaspis koerti, Odontaspis (Parodontaspis) koerti, Odontaspis (Synodontaspis) koerti, Otodus koerti, Serratolamna koerti, Synodontaspis koerti
Original description species: (Stromer, 1910)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias lerichei (54)
(Casier, 1946)
Synonyms: Carcharias lerichei, Isurolamna lerichei, Lamna aff. lerichei, Lamna lerichei, Serratolamna lerichei
Original description species: (Casier, 1946)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias mississippiensis (2)
(Case, 1994)
Synonyms: Pseudodontaspis mississippiensis
Original description species: (Case, 1994)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias sp. (3)

Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachycarcharias twiggsensis (23)
(Case, 1981)
Synonyms: Brachycarcharias cf. twiggsensis, Cretolamna twiggsensis, Lamna twiggsensis, Tethylamna cf. twiggsensis, Tethylamna twiggsensis
Original description species: (Case, 1981)
Genus: Brachycarcharias Cappetta & Nolf, 2005
Family: Odontaspididae Müller & Henle, 1839
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Brachymylus altidens (8)
Woodward, 1892
Synonyms: Brachymylus cf. altidens
Original description species: Woodward, 1892
Genus: Brachymylus Woodward, 1892
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus bogolubovi (1)
Averianov, 1992
Original description species: Averianov, 1992
Genus: Brachymylus Woodward, 1892
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus cf. altidens (1)
Woodward, 1892
Valid name: Brachymylus altidens
Valid name: Brachymylus altidens
Original description species: Woodward, 1892
Genus: Brachymylus Woodward, 1892
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus minor (3)
Woodward, 1892
Original description species: Woodward, 1892
Genus: Brachymylus Woodward, 1892
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachymylus sp. (2)

Genus: Brachymylus Woodward, 1892
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Brachyrhizodus cf. wichitaensis (1)
Romer, 1942
Valid name: Brachyrhizodus wichitaensis
Valid name: Brachyrhizodus wichitaensis
Original description species: Romer, 1942
Genus: Brachyrhizodus Romer, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus mcnultii (1)
(Thurmond, 1971)
Valid name: Brachyrhizodus mcnultyi
Valid name: Brachyrhizodus mcnultyi
Original description species: (Thurmond, 1971)
Genus: Brachyrhizodus Romer, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus mcnultyi (1)
(Thurmond, 1971)
Valid name: Pseudohypolophus mcnultyi
Valid name: Pseudohypolophus mcnultyi
Original description species: (Thurmond, 1971)
Genus: Brachyrhizodus Romer, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus sp. (2)

Genus: Brachyrhizodus Romer, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Brachyrhizodus wichitaensis (22)
Romer, 1942
Synonyms: Brachyrhizodus cf. wichitaensis
Original description species: Romer, 1942
Genus: Brachyrhizodus Romer, 1942
Family: incert. fam.
Order: incert. sedis
Subclass: Euchondrocephali
Bransonella cf. nebraskensis (2)
(Johnson, 1984)
Valid name: Bransonella nebraskensis
Valid name: Bransonella nebraskensis
Original description species: (Johnson, 1984)
Genus: Bransonella Harlton, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella lingulata (6)
Ivanov & Ginter, 1996
Original description species: Ivanov & Ginter, 1996
Genus: Bransonella Harlton, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella nebraskensis (20)
(Johnson, 1984)
Synonyms: Bransonella cf. nebraskensis, Xenacanthus nebraskensis
Original description species: (Johnson, 1984)
Genus: Bransonella Harlton, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella sp. (13)

Genus: Bransonella Harlton, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella tribula (1)
Elliott & Hodnett, 2013
Original description species: Elliott & Hodnett, 2013
Genus: Bransonella Harlton, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Bransonella tridentata (3)
Harlton, 1933
Valid name: Xenacanthus tridentatus
Valid name: Xenacanthus tridentatus
Original description species: Harlton, 1933
Genus: Bransonella Harlton, 1933
Family: incert. fam.
Order: Bransonelliformes
Superorder: Xenacanthimorpha
Subclass: Elasmobranchii
Breviacanthus brevis (5)
Phillips, 1871
Synonyms: Nemacanthus brevis, Nemacanthus brevispinus
Original description species: Phillips, 1871
Genus: Breviacanthus Maisey, 1976
Family: Palaeospinacidae Regan, 1906
Order: Synechodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Britobatos primarmata (8)
(Woodward, 1889)
Synonyms: Raja primarmata, Rhinobatos aff. primarmatus, Rhinobatos berytensis, Rhinobatos primarmatus, Rhinobatus berytensis
Original description species: (Woodward, 1889)
Genus: Britobatos Claeson, Underwood & Ward, 2013
Family: Trygonorrhinidae Last, Séret & Naylor, 2016
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bryactinus amorphus (3)
Cope, 1875
Original description species: Cope, 1875
Genus: Bryactinus Cope, 1875
Family: Callorhinchidae Garman, 1901
Order: Chimaeriformes
Subclass: Holocephali
Buffonites undulatus (2)
Sternberg, 1829 (Nomina Oblita)
Valid name: Ptychodus mammillaris
Valid name: Ptychodus mammillaris
Original description species: Sternberg, 1829 (Nomina Oblita)
Genus: Buffonites Sternberg, 1829
Family: Ptychodontidae Jaekel, 1898
Order: incertae sedis
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia aff. daviesi (1)
(Woodward, 1889)
Valid name: Burnhamia daviesi
Valid name: Burnhamia daviesi
Original description species: (Woodward, 1889)
Genus: Burnhamia Cappetta, 1976
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia daviesi (44)
(Woodward, 1889)
Synonyms: Burnhamia aff. daviesi, Burnhamia (Rhinoptera) daviesi, Rhinoptera cf. daviesi, Rhinoptera daviesi, Rhinoptera daviesii
Original description species: (Woodward, 1889)
Genus: Burnhamia Cappetta, 1976
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia davisi (4)
(Woodward, 1889)
Synonyms: Chomatodus davisi, Petalodus davisii
Original description species: (Woodward, 1889)
Genus: Burnhamia Cappetta, 1976
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia fetahi (3)
Cappetta, 1985
Original description species: Cappetta, 1985
Genus: Burnhamia Cappetta, 1976
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia sp. (23)

Genus: Burnhamia Cappetta, 1976
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Burnhamia (Rhinoptera) daviesi (1)
(Woodward, 1889)
Valid name: Burnhamia daviesi
Valid name: Burnhamia daviesi
Original description species: (Woodward, 1889)
Genus: Burnhamia (Rhinoptera)
Family: Mobulidae Bonaparte, 1838
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bythaelurus sp. (3)

Genus: Bythaelurus Compagno, 1988
Family: Pentanchidae Smith, 1912
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bythaelurus steurbauti (2)
Hovestadt & Hovestadt-Euler, 1995
Original description species: Hovestadt & Hovestadt-Euler, 1995
Genus: Bythaelurus Compagno, 1988
Family: Pentanchidae Smith, 1912
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii
Bythiacanthus aff. ianishevskyi (1)
(Khabakob)
Valid name: Bythiacanthus ianishevskyi
Valid name: Bythiacanthus ianishevskyi
Original description species: (Khabakob)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus brevis (1)
(Agassiz, 1836)
Valid name: Avonacanthus brevis
Valid name: Avonacanthus brevis
Original description species: (Agassiz, 1836)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus cf. siderius (1)
(Leidy, 1870)
Valid name: Bythiacanthus siderius
Valid name: Bythiacanthus siderius
Original description species: (Leidy, 1870)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus ianishevskyi (2)
(Khabakob)
Synonyms: Bythiacanthus aff. ianishevskyi
Original description species: (Khabakob)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus lopesi (2)
Figueroa & Gallo, 2017
Original description species: Figueroa & Gallo, 2017
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus lucasi (2)
(Eastman, 1902)
Synonyms: Ctenacanthus lucasi
Original description species: (Eastman, 1902)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus peregrinus (1)
(Khabakob)
Original description species: (Khabakob)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus siderius (4)
(Leidy, 1870)
Synonyms: Asteracanthus siderius, Bythiacanthus cf. siderius
Original description species: (Leidy, 1870)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus solidus (2)
(Eastman, 1902)
Synonyms: Ctenacanthus solidus
Original description species: (Eastman, 1902)
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus sp. (6)

Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Bythiacanthus vanhornei (4)
St. John & Worthen, 1875
Original description species: St. John & Worthen, 1875
Genus: Bythiacanthus St. John & Worthen, 1875
Family: Heslerodidae Maisey, 2010
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii
Byzenos latipinnatus (1)
Münster, 1843
Valid name: Janassa bituminosa
Valid name: Janassa bituminosa
Original description species: Münster, 1843
Genus: Byzenos Münster, 1840
Family: Janassidae Jaekel, 1899
Order: Petalodontiformes
Subclass: Euchondrocephali