Original description species: Cappetta, 1991
Genus: Safagaia Cappetta, 1991
Family: incert. fam.
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Safrodus cf. tozeri
Original description species: Koot & Cuny, 2015
Genus: Safrodus Koot & Cuny, 2015
Family: incert. fam.
Order: Synechodontiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cladodus caorrugatus, Cladodus eccentricus, Cladodus elongatus, Cladodus ferox, Cladodus grandis, Cladodus hornei, Cladodus magnificus, Cladodus prototypus, Cladodus spinosus, Cladodus stenopus, Cladodus striatus, Saivodus cf. striatus
Original description species: (Agassiz, 1843)
Genus: Saivodus Duffin & Ginter, 2006
Family: incert. fam.
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii

Original description species: Cook, Eaton, Newbrey & Wilson, 2014
Genus: Saltirius Cook, Eaton, Newbrey & Wilson, 2014
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ivanov, 2022
Genus: Samarodus Ivanov, 2022
Family: incert. fam.
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Deltodus complanatus
Original description species: (Newberry & Worthen, 1866)
Genus: Sandalodus Newberry & Worthen, 1866
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali

Synonyms: Sandalodus cf. crassus
Original description species: (Newberry & Worthen, 1866)
Genus: Sandalodus Newberry & Worthen, 1866
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali

Original description species: Newberry & Worthen, 1866
Genus: Sandalodus Newberry & Worthen, 1866
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali

Original description species: Nielsen, 1952
Genus: Sarcoprion Nielsen, 1952
Family: Helicoprionidae Karpinsky, 1911
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Synonyms: Sarisubcorona cf. circabasis
Original description species: Johns, Barnes, & Orchard, 1997
Genus: Sarisubcorona Johns, 1997
Subclass: Elasmobranchii

Original description species: Ameghino, 1935
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman, 1980
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Verma, 1965
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman, 1980
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ameghino, 1935
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Sokolov, 1978
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Rhinognathus lewisii, Scapanorhynchus cf. lewisii, Scapanorhynchus elongatus, Scapanorhynchus lewisi
Original description species: (Davis, 1887)
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ameghino, 1906
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scapanorhynchus aff. minimus, Scapanorhynchus cf. minimus
Original description species: Landemaine, 1991
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ameghino, 1935
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Siverson, 1992
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna plicatelis
Original description species: (Reuss, 1845)
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scapanorhynchus aff. praeraphiodon
Original description species: Sokolov, 1978
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bourdon, Wright, Lucas, Spielmann & Pence, 2011
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna rapax, Otodus smilodon, Scapanorhynchus cf. rapax, Scapanorhynchus smilodon
Original description species: (Quaas, 1902)
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1959
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna plicatella, Lamna raphiodon, Lamna rhaphiodon, Lamna (Odontaspis) plicatella, Lamna (Odontaspis) raphiodon, Lamna (Odontaspis) rhaphiodon, Odontaspis raphiodon, Odontaspis rhaphiodon, Scapanorhynchus aff. raphiodon, Scapanorhynchus aff. rhaphiodon, Scapanorhynchus cf. raphiodon , Scapanorhynchus raphiodon, Scapanorhynchus (Odontaspis) rhaphiodon
Original description species: (Geinitz, 1839)
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ameghino, 1935
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Agassiz, 1843)
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Zhelezko, 1987
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna texana, Odontaspis malletiana, Scapanorhynchus cf. texanus, Scapanorhynchus malletianus, Scapanorhynchus raphiodon texanus
Original description species: (Roemer, 1849)
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ameghino, 1935
Genus: Scapanorhynchus Woodward, 1889
Family: Mitsukurinidae Jordan, 1898
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Schizorhiza aff. stromeri, Schizorhiza cf. stromeri
Original description species: Weiler, 1930
Genus: Schizorhiza Weiler, 1930
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Schizorhiza aff. weileri, Schizorhiza cf. weileri
Original description species: Serra, 1933
Genus: Schizorhiza Weiler, 1930
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bourdon, Wright, Lucas, Spielmann & Pence, 2011
Genus: Scindocorax Bourdon, Wright, Lucas, Spielmann & Pence, 2011
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Ganopristis libanica, Pristiophorus atavus, Pristiophorus (Sclerorhynchus) atavus, Sclerorhynchus crassidens, Sclerorhynchus libanicus, Squatina crassidens
Original description species: Woodward, 1889
Genus: Sclerorhynchus Woodward, 1889
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta & Case, 1999
Genus: Sclerorhynchus Woodward, 1889
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sclerorhynchus cf. pettersi
Original description species: Case & Cappetta, 1997
Genus: Sclerorhynchus Woodward, 1889
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sclerorhynchus cf. priscus
Original description species: Cappetta & Case, 1999
Genus: Sclerorhynchus Woodward, 1889
Family: Sclerorhynchidae Cappetta, 1974
Suborder: Sclerorhynchoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Sahni & Mehrotra, 1981
Genus: Scoliodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta & Case, 2016
Genus: Scoliodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Averianov & Udovitshenko, 1993
Genus: Scoliodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scoliodon cf. laticaudus-f
Original description species: Müller & Henle, 1838
Genus: Scoliodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Scoliodon Müller & Henle, 1837
Family: Carcharhinidae Jordan & Evermann, 1896
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Raymond, 1925
Genus: Scoliorhiza Raymond, 1925
Family: Cestraciontidae
Subclass: Elasmobranchii

Original description species: Lebedev, 2020
Genus: Sculptospina Lebedev, 2020
Family: incert. fam.
Order: Ctenacanthiformes
Superorder: Cladodontomorphi
Subclass: Elasmobranchii

Original description species: Kiel, Peckmann & Simon, 2013
Genus: Scyliorhinotheca Kiel, Peckmann & Simon, 2013
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Ward, 2008
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Feichtinger, Pollerspöck, Harzhauser, Auer, Ćorić, Kranner, Beaury & Guinot, 2024
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Laurito Mora, 1999
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyllium angustum, Thyellina angusta
Original description species: (Münster in Agassiz, 1838)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scylliodus antiquus, Scyllium antiquum
Original description species: (Agassiz, 1843)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1980
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta & Case, 1999
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Halter, 1995
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus cf. biformis
Original description species: Reinecke, 2014
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Pararhincodon bilzi
Original description species: (Reinecke & Engelhard, 1997)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus cf. bloti
Original description species: Cappetta, 1980
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Ward, 2008
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus aff. canicula-f, Scyliorhinus cf. canicula-f
Original description species: (Linnaeus, 1758)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Halter, 1990
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus cf. coupatezi
Original description species: Herman, 1974
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus appendiculatus, Scyliorhinus appendiculatus, Scylliodus crassiconus, Scyllium crassiconum
Original description species: (Reuss, 1845)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus cf. dubius, Scyllium dubium
Original description species: (Woodward, 1889)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus aff. elongatus, Scyliorhinus cf. elongatus, Scyllium elongatum, Scyllium elongatus, Scyllium tumidens, Thyellina elongata
Original description species: (Davis, 1887)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Noubhani & Cappetta, 1997
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Case & Cappetta, 1997
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Chiloscyllium fossile, Scyliorhinus cf. joleaudi, Scyliorhinus fossilis
Original description species: Cappetta, 1970
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Leder, 2015
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Karasawa, 1989
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus aff. luypaertsi
Original description species: Halter, 1995
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Darteville & Casier, 1959
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Guinot, Underwood, Cappetta & Ward, 2013
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus cf. moosi
Original description species: Herman, 1975
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Guinot, Underwood, Cappetta & Ward, 2013
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Herman, 1977
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus aff. ptychtus
Original description species: Noubhani & Cappetta, 1997
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus reyndersii
Original description species: Halter, 1995
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scylliorhinus rugosus, Scyllium rugosum
Original description species: (Williston, 1900)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyllium catulus-f, Scyllium stellare-f
Original description species: (Linnaeus, 1758)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Reinecke, 2014
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Noubhani & Cappetta, 1997
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta & Case, 1999
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Case, 1987
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet, 2006
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Quenstedt, 1882)
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Halter, 1990
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cicimurri, Knight & Ebersole, 2022
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scyliorhinus cf. woodwardi
Original description species: Cappetta, 1976
Genus: Scyliorhinus Blainville, 1816
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet, 2006
Genus: Scymnodalatias Garrick, 1956
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Nishimatsu & Ujihara, 2019
Genus: Scymnodalatias Garrick, 1956
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Archey, 1921)
Genus: Scymnodalatias Garrick, 1956
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Yano & Tanaka, 1984
Genus: Scymnodon Barbosa Du Bocage & De Brito Capello
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Scymnodon cf. ringens-f
Original description species: Barbosa Du Bocage & De Brito Capello, 1864
Genus: Scymnodon Barbosa Du Bocage & De Brito Capello
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Scymnodon Barbosa Du Bocage & De Brito Capello
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Agassiz, 1839)
Genus: Secarodus Rees & Underwood, 2008
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Karatajute-Talimaa, 1968
Genus: Seretolepis Karatajute-Talimaa, 1968
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Original description species: Chen, 2002
Genus: Serratocorona Chen, 2002
Subclass: Elasmobranchii

Synonyms: Dasyatis cf. tricuspidatus, Dasyatis tricuspidata, Dasyatis tricuspidatus, Doratodus cf. tricuspidatus
Original description species: (Casier, 1946)
Genus: Serratodasyatis Reinecke, Mollen, Gijsen, D’Haeze & Hoedemakers, 2024
Family: incert. fam.
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna caraibaea africana, Serratolamna caraibaea africana
Original description species: (Darteville & Casier, 1943)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cretolamna aff. aschersoni, Cretolamna aschersoni, Cretolamna cf. aschersoni, Lamna aff. aschersoni, Lamna aschersoni, Otodus aschersoni
Original description species: (Stromer, 1905)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cretolamna caraibaea, Lamna caraibaea, Serratolamna cf. caraibaea
Original description species: (Leriche, 1938)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cretalamna gafsana, Cretolamna gafsana, Lamna aff. gafsana, Lamna cf. gafsana, Lamna gafsana
Original description species: (White, 1926)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias khderii, Serratolamna aff. khderii
Original description species: (Zalmout & Mustafa, 2001)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cretalamna maroccana, Cretolamna aff. maroccana, Cretolamna biauriculata maroccana, Cretolamna cf. maroccana, Cretolamna marocana, Cretolamna maroccana, Lamna biauriculata, Lamna biauriculata maroccana, Serratolamna (Cretalamna) maroccana
Original description species: (Arambourg, 1935)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cretolamna serrata, Galeus serratus, Lamna cf. libyca, Lamna divergens, Lamna libyca, Lamna serra, Lamna serrata, Odontaspis oxyprion, Otodus divergens, Otodus serratus, Serratolamna aff. serrata, Serratolamna divergens, Serratolamna libyca, Serratolamna oxyprion, Serratolamna serra, Serratolamna serratus
Original description species: (Agassiz, 1843)
Genus: Serratolamna Landemaine, 1991
Family: Serratolamnidae Landemaine, 1991
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Tchuvashov, 2001
Genus: Shaktauites Tchuvashov, 2001
Family: Helicoprionidae Karpinsky, 1911
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Zhu, Li, Ahlberg & Zhu, 2022
Genus: Shenacanthus Zhu, Li, Ahlberg & Zhu, 2022

Synonyms: Dasyatis davisi
Original description species: Casier, 1966
Genus: Sheppeytrygon Reinecke, Mollen, Gijsen, D’Haeze & Hoedemakers, 2024
Family: Dasyatidae Jordan & Gilbert, 1879
Order: Myliobatiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Sansom, Aldridge & Smith, 2000
Genus: Shiqianolepis Sansom, Aldridge & Smith, 2000
Family: Shiqianolepidae Sansom, Aldridge & Smith, 2000
Order: Mongolepidida

Original description species: Long, 1990
Genus: Siamodus Long, 1990
Family: incert. fam.
Order: incert. sedis
Subclass: Elasmobranchii

Original description species: Ivanov & Rodina, 2004
Genus: Siberiodus Ivanov & Rodina, 2004
Family: incert. fam.
Order: Omalodontiformes
Subclass: Elasmobranchii

Synonyms: Sibyrhynchus cf. denisoni
Original description species: Zangerl & Case, 1973
Genus: Sibyrhynchus Zangerl & Case, 1973
Family: Sibyrhynchidae Zangerl & Case, 1973
Order: Iniopterygiformes
Subclass: Holocephali

Original description species: Guinot, Underwood, Cappetta & Ward, 2013
Genus: Sigmoscyllium Guinot, Underwood, Cappetta & Ward, 2013
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeoscyllium striatum
Original description species: (Underwood & Ward, 2008)
Genus: Sigmoscyllium Guinot, Underwood, Cappetta & Ward, 2013
Family: Scyliorhinidae Gill, 1862
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Lund, 1989
Genus: Siksika Lund, 1989
Family: Pristodontidae Woodward, 1889
Order: Petalodontiformes
Subclass: Euchondrocephali

Original description species: Zangerl, 1979
Genus: Similihariotta Zangerl, 1979
Family: Chimaeridae Bonaparte, 1831
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Fuchs, Engelbrecht, Lukeneder & Kriwet, 2017
Genus: Similiteroscyllium Fuchs, Engelbrecht, Lukeneder & Kriwet, 2017
Family: incert. fam.
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Ornatoscyllium rugasimulatum
Original description species: (Guinot, Cappetta & Adnet, 2014)
Genus: Similiteroscyllium Fuchs, Engelbrecht, Lukeneder & Kriwet, 2017
Family: incert. fam.
Order: Orectolobiformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Gagnier, Turner, Friman, Suarez-Riglos & Janvier, 1988
Genus: Sinacanthus P'an, 1959
Family: Sinacanthidae Min, 1998
Order: Sinacanthida
Subclass: Elasmobranchii

Original description species: P'an & Liu in P'an, 1975
Genus: Sinacanthus P'an, 1959
Family: Sinacanthidae Min, 1998
Order: Sinacanthida
Subclass: Elasmobranchii

Original description species: P'an, 1959
Genus: Sinacanthus P'an, 1959
Family: Sinacanthidae Min, 1998
Order: Sinacanthida
Subclass: Elasmobranchii

Original description species: Wang, Zhu, Jin, & Wang, 2007
Genus: Sinacrodus Wang, Zhu, Jin, & Wang, 2007
Family: Acrodontidae Casier, 1959
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Lei, 1983
Genus: Sinohelicoprion Liu & Chang, 1963
Family: Helicampodontidae Itano & Lebedev, 2023
Order: Eugeneodontiformes
Subclass: Euchondrocephali

Original description species: Herman, 1986
Genus: Smithraja Herman, 1986
Family: Rajidae De Blainville, 1816
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Smithraja Herman, 1986
Family: Rajidae De Blainville, 1816
Suborder: Rajoidei
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Karatajute-Talimaa & Novitskaya, 1997
Genus: Sodolepis Karatajute-Talimaa & Novitskaya, 1997
Family: Mongolepididae Karatajute-Talimaa & Novitskaya, 1990
Order: Mongolepidida

Synonyms: Solenodus cf. crenulatus
Original description species: Trautschold, 1874
Genus: Solenodus Trautschold, 1874
Family: Cochliodontidae Owen, 1867
Order: Cochliodontiformes
Superorder: Holocephalimorpha
Subclass: Holocephali

Original description species: Andreev, Coates, Karatajūtė-Talimaa, Shelton, Cooper, Wang & Sansom, 2016
Genus: Solinalepis Andreev, Coates, Karatajūtė-Talimaa, Shelton, Cooper, Wang & Sansom, 2016
Family: incert. fam. Sansom, Aldridge & Smith, 2000
Order: Mongolepidida

Original description species: Welton & Goedert, 2016
Genus: Somniosus Lesueur, 1818
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Somniosus aff. microcephalus-f
Original description species: (Bloch & Schneider, 1801)
Genus: Somniosus Lesueur, 1818
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Somniosus (Rhinoscymnus) cf. rostratus-f
Original description species: (Risso, 1827)
Genus: Somniosus Lesueur, 1818
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Somniosus (Rhinoscymnus) sp-f
Genus: Somniosus Lesueur, 1818
Family: Somniosidae Jordan, 1888
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Guinot, Hautier, Sambou & Martin, 2023
Genus: Sowibatos Guinot, Hautier, Sambou & Martin, 2023
Family: incert. fam.
Order: Rhinopristiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Aellopos bugesiacus, Aellopos elongata, Aellopos elongates, Aellopos elongatus, Euryarthra muensteri, Raja muensteri, Rhinobatus bugesiacus, Spathobatis mirabilis
Original description species: Thiollière, 1852
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood & Ward, 2004
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Rhinobatos cf. halteri, Rhinobatos halteri
Original description species: (Biddle & Landemaine, 1988)
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Rhinobatus morinicus, Spathobatis boloniae
Original description species: Sauvage, 1873
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Spathobatis aff. mutterlosei
Original description species: Thies, 1982
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Underwood, Mitchell & Veltkamp, 1999
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Spathobatis cf. uppensis
Original description species: Thies, 1982
Genus: Spathobatis Thiollière, 1852
Family: Spathobatidae Dames, 1888
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Davis, 1879)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hybodus carbonarius, Hybodus vicinalis, Limnoselache aff. vicinalis, Limnoselache cf. vicinalis, Limnoselache vincinalis
Original description species: (Giebel, 1848)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Fournier & Pruvost, 1928
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Newberry, 1897)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cladodus gondwanus, Ctenacanthus gondwanus
Original description species: (Silva Santos, 1947)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Figueroa & Gallo, 2017
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Ctenacanthus maranhensis
Original description species: (Silva Santos, 1946)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cladodus minor, Ctenacanthus minor
Original description species: (Davis, 1879)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cladodus nodosus
Original description species: (Egerton, 1853)
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Pauliv, Dias & Sedor, 2012
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Chahud, Fairchild & Petri, 2010
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cladodus aequistriatus, Cladodus hybodoides, Cladodus marshi, Ctenacanthus hybodoides, Ctenacanthus nodosus, Ctenacanthus serrulatus, Sphenacanthus aff. marshi, Sphenacanthus hybodoides, Sphenacanthus marshi
Original description species: Agassiz, 1837
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Ginter, 2016
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sphenacanthus aff. vicinalis
Original description species: Soler-Gijón, 1997
Genus: Sphenacanthus Agassiz, 1837
Family: Sphenacanthidae Maisey, 1982
Order: incert. sedis
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Orthacodus cf. alpinus
Original description species: Gümbel, 1861
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Orthacodus helveticus, Paraorthacodus helveticus, Sphenodus cf. helveticus
Original description species: (De Beaumont, 1960)
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sphenodus imprressus
Original description species: Zittel, 1870
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Lamna longidens, Lamna (Sphenodus) longidens, Orthacodus longidens, Orthacodus (Sphenodus) longidens, Oxyrhina longidens, Oxyrhina ornati, Sphenodus aff. longidens, Sphenodus cf. longidens, Sphenodus ornati, Squalus phillipsii
Original description species: (Agassiz, 1843)
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Eychlaodus lundgreni, Orthacodus lundgreni, Oxyrhina cf. lundgreni, Oxyrhina lundgreni, Sphenodus cf. lundgreni
Original description species: (Davis, 1890)
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Odontaspis macer, Orthacodus macer, Oxyrhina macer
Original description species: (Quenstedt, 1851)
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Orthacodus nitidus
Original description species: Wagner, 1862
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Agassiz, 1843)
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Emmons, 1858
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Seguenza, 1900
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Orthacodus (Sphenodus) sabaudianus
Original description species: Pictet, 1858
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Gemmellaro, 1871
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Gemmellaro, 1871
Genus: Sphenodus Agassiz, 1843
Family: Orthacodontidae Glikman, 1957
Suborder: Hexanchoidei
Order: Hexanchiformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Agassiz, 1837)
Genus: Sphenonchus Agassiz, 1843
Family: Hybodontidae Owen, 1846
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Hay, 1902
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet et al., 2020
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharhinus (Scoliodon) cf. taxandriae, Carcharhinus (Scoliodon) taxandriae, Carcharias taxandriae, Carcharias (Scoliodon) taxandriae, Rhizoprionodon dentatus, Rhizoprionodon taxandriae, Scoliodon aff. taxandriae, Scoliodon cf. taxandriae, Scoliodon dentatus, Scoliodon taxandriae, Sphyrna aff. arambourgi, Sphyrna arambourgi
Original description species: Probst, 1878
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias laevissimus, Carcharias (Physodon) kraussi, Carcharias (Scoliodon) cf. krausi, Carcharias (Scoliodon) krausi, Carcharias (Scoliodon) kraussi, Cestracion laevissimus, Cestracion (Sphyrna) laevissimus, Galeocerdo laevissimus, Negaprion kraussei, Negaprion kraussi, Sphyrna aff. laevissima, Sphyrna cf. laevissima
Original description species: (Cope, 1867)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Hypoprion lagostensis
Original description species: (Darteville & Casier, 1959)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sphyrna aff. lewini-f, Sphyrna cf. lewini-f, Sphyrna diplana-f
Original description species: (Griffith & Smith, 1834)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Carcharias magna, Carcharias (Aprionodon) magnus, Cestracion magnus, Cestracion (Sphyrna) magnus, Negaprion cf. magnus
Original description species: Cope, 1867
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sphyrna cf. media-f
Original description species: Springer, 1940
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Sphyrna aff. mokarran-f, Sphyrna cf. mokarran-f
Original description species: (Rüppell, 1837)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Linnaeus, 1758)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Selache ventusta
Original description species: (Costa, 1856)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Cestracion zygaena-f, Sphyrna aff. zygaena-f, Sphyrna cf. zygaena-f, Sphyrna zigaena-f, Zygaena malleus-f
Original description species: (Linnaeus, 1758)
Genus: Sphyrna Rafinesque, 1810
Family: Sphyrnidae Bonaparte, 1840
Order: Carcharhiniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Spinax Cuvier, 1816
Family: Etmopteridae Fowler, 1934
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Fayolia mourloni
Original description species: Stainier, 1894
Genus: Spiraxis Newberry, 1885
Subclass: Elasmobranchii

Original description species: Cope, 1874
Genus: Sporetodus Cope, 1874
Family: Ptychodontidae Jaekel, 1898
Superfamily: Hybodontoidea
Order: Hybodontiformes
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bigelow & Schroeder, 1962
Genus: Springeria Bigelow & Schroeder, 1951
Family: Anacanthobatidae Von Bonde & Swart, 1924
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Springeria Bigelow & Schroeder, 1951
Family: Anacanthobatidae Von Bonde & Swart, 1924
Order: Rajiformes
Superorder: Batomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Siversson, Cook, Ryan, Watkins, Tatarnic, Downes & Newbrey, 2019
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, 1991
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Agassiz in Geinitz, 1839)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Corax baharijensis, Squalicorax aff. baharijensis, Squalicorax cf. baharijensis
Original description species: (Stromer, 1927)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax bassani, Corax bassani, Corax bassanii, Paraanacorax bassanii
Original description species: (Gemmellaro, 1920)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Siversson, Cook, Ryan, Watkins, Tatarnic, Downes & Newbrey, 2019
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, Adnet, Akkrim & Amalik, 2014
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Squalicorax aff. bernardezi, Squalicorax gutierrezmarcoi
Original description species: Guinot, Underwood, Cappetta & Ward, 2013
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Vullo & Cappetta & Néraudeau, 2007
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Corax curvata, Corax curvatus, Squalicorax cf. curvatus, Squalicorax ex gr. curvatus
Original description species: (Williston, 1900)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: (Glikman & Shvazhaite, 1971)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Bice & Shimada, 2016
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax falcatus, Corax aff. falcatus, Corax falcatus, Galeocerdo falcatus, Galeocerdo hartvellii, Galeocerdo hartwellii, Palaeoanacorax falcatus falcatus, Palaeocorax falcatus, Sinkorax falcatus, Squalicorax aff. falcatus, Squalicorax cf. falcatus, Squalicorax gr. falcatus, Squalicorax hartwellii
Original description species: (Agassiz, 1843)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeoanacorax falcatus praecursor
Original description species: (Sokolov, 1978)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Corax heterodon, Palaeoanacorax falcatus heterodon
Original description species: (Reuss, 1845)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeoanacorax intermedius, Squalicorax cf. intermedius
Original description species: (Glikman, 1971)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax aff. kaupi, Anacorax cf. kaupi, Anacorax kaupi, Anacorax plicatus, Corax cf. pristodontus kaupi, Corax kaupi, Corax kaupii, Corax pristodontus kaupi, Corax pristodontus plicatus, Galeocerdo crassidens, Galeocerdo dubius, Squalicorax aff. crassidens, Squalicorax cf. kaupi, Squalicorax crassidens, Squalicorax dubius, Squalicorax pristodontus kaupi, Squalicorax pristodontus plicatus
Original description species: (Agassiz, 1843)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax kugleri, Corax kugleri
Original description species: (Leriche, 1938)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Squalicorax aff. lalunaensis
Original description species: Guinot & Carrillo-Briceño, 2018
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax lindstromi, Corax lindstromi, Squalicorax aff. lindstromi, Squalicorax cf. lindstromi
Original description species: (Davis, 1890)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, Adnet, Akkrim & Amalik, 2014
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax mississipiensis
Original description species: (Sokolov, 1978)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Guinot & Carrillo-Briceño, 2018
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Siversson, Cook, Ryan, Watkins, Tatarnic, Downes & Newbrey, 2019
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeoanacorax obliquus subeserratus
Original description species: (Glikman, 1980)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Paranacorax obruchevi
Original description species: (Glikman, 1979)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeoanacorax pamiricus
Original description species: (Glikman, 1971)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax papulovi
Original description species: (Zhelezko, 1987)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acrolamna primaeva, Eoanacorax dalinkevichiusi, Oxyrhina primaeva
Original description species: (Dalinkevicius, 1935)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Landemaine, 1991
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Siverson, Lindgren & Kelley, 2007
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax pristodontus, Corax pristodontus, Galeocerdo pristodontus, Galeus pristodontus, Squalicorax cf. pristodontus, Squalus pristodontus
Original description species: (Agassiz, 1835)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Glikman, 1980
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax santonicus
Original description species: (Glikman & Zhelezko, 1979)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Palaeoanacorax volgensis
Original description species: (Glikman, 1971)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Anacorax yangaensis, Corax yangaensis, Microanacorax yangaensis, Squalicorax aff. yangaensis, Squalicorax cf. yangaensis
Original description species: (Darteville & Casier, 1943)
Genus: Squalicorax Whitley, 1939
Family: Anacoracidae Casier, 1947
Order: Lamniformes
Superorder: Galeomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Cappetta, Morrison & Adnet, 2019
Genus: Squaliodalatias Adnet, Cappetta & Reynders, 2006
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Oligodalatias roederi
Original description species: Adnet, Cappetta & Reynders, 2006
Genus: Squaliodalatias Adnet, Cappetta & Reynders, 2006
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Adnet, 2006
Genus: Squaliolus Smith & Radcliffe In Smith, 1912
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Centroscymnus schaubi, Squaliolus cf. schaubi
Original description species: (Casier, 1958)
Genus: Squaliolus Smith & Radcliffe In Smith, 1912
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Squaliolus Smith & Radcliffe In Smith, 1912
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Suzuki, 2015
Genus: Squaliomicrus Suzuki, 2015
Family: Dalatiidae Gray, 1851
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Genus: Squalogaleus Maisey, 1976
Family: incert. fam.
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Spinacorhinus polyspondylus, Squaloraia dolichognathos, Squaloraja dolichognatha
Original description species: (Agassiz, 1836)
Genus: Squaloraja Riley, 1833
Family: Squalorajidae Woodward, 1886
Suborder: Squalorajoidei
Order: Chimaeriformes
Subclass: Holocephali

Genus: Squaloraja Riley, 1833
Family: Squalorajidae Woodward, 1886
Suborder: Squalorajoidei
Order: Chimaeriformes
Subclass: Holocephali

Original description species: Woodward, 1886
Genus: Squaloraja Riley, 1833
Family: Squalorajidae Woodward, 1886
Suborder: Squalorajoidei
Order: Chimaeriformes
Subclass: Holocephali

Synonyms: Acanthias vulgaris-f, Squalus aff. acanthias-f, Squalus cf. acanthias-f
Original description species: Linnaeus, 1758
Genus: Squalus Linné, 1758
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Original description species: Antunes & Jonet, 1970
Genus: Squalus Linné, 1758
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Acanthias aff. alsaticus, Acanthias alsaticus, Squalus aff. alsaticus, Squalus cf. alsaticus
Original description species: (Andreae, 1890)
Genus: Squalus Linné, 1758
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii

Synonyms: Protosqualus argentinensis
Original description species: (Bogan, Agnolin & Novas, 2016)
Genus: Squalus Linné, 1758
Family: Squalidae De Blainville, 1816
Order: Squaliformes
Superorder: Squalomorphii
Subcohort: Neoselachii
Cohort: Euselachii
Subclass: Elasmobranchii