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Selachii (shark)
Taxonomy
Selachii was named as an order. It is extant.
It was reranked as the suborder Selachii by Gadow (1898); it was corrected as Selacha by Hay (1902); it was reranked as the order Selachii by Säve-Söderbergh (1934); it was reranked as the class Selachii by Applegate (1970); it was reranked as the unranked clade Selachii by Jordan (1963), Long (2011), Nelson et al. (2016), Ebersole et al. (2019), Ebersole et al. (2024), Cicimurri et al. (2025).
It was assigned to Plagiostomi by Gadow (1898); to Euselachii by Hay (1902); to Placoidea by Jaekel (1911); to Plagiostomi by Gunnell (1933); to Vertebrata by Applegate (1970); to Chondrichthyes by Sykes (1971); to Hybodontiformes by Herman (1977), Case (1978), Case (1979); to Elasmobranchii by Case (1904), Eastman (1904), Andrews (1906), Fedorowski (1912), Woodward (1916), Thurmond and Jones (1981), Kumar and Loyal (1987), Case and Schwimmer (1988); to Neoselachii by Long (2011); to Elasmobranchii by Säve-Söderbergh (1934), Jordan (1963), Ebersole et al. (2019); and to Elasmobranchii by Nelson et al. (2016), Ebersole et al. (2024), Cicimurri et al. (2025).
It was reranked as the suborder Selachii by Gadow (1898); it was corrected as Selacha by Hay (1902); it was reranked as the order Selachii by Säve-Söderbergh (1934); it was reranked as the class Selachii by Applegate (1970); it was reranked as the unranked clade Selachii by Jordan (1963), Long (2011), Nelson et al. (2016), Ebersole et al. (2019), Ebersole et al. (2024), Cicimurri et al. (2025).
It was assigned to Plagiostomi by Gadow (1898); to Euselachii by Hay (1902); to Placoidea by Jaekel (1911); to Plagiostomi by Gunnell (1933); to Vertebrata by Applegate (1970); to Chondrichthyes by Sykes (1971); to Hybodontiformes by Herman (1977), Case (1978), Case (1979); to Elasmobranchii by Case (1904), Eastman (1904), Andrews (1906), Fedorowski (1912), Woodward (1916), Thurmond and Jones (1981), Kumar and Loyal (1987), Case and Schwimmer (1988); to Neoselachii by Long (2011); to Elasmobranchii by Säve-Söderbergh (1934), Jordan (1963), Ebersole et al. (2019); and to Elasmobranchii by Nelson et al. (2016), Ebersole et al. (2024), Cicimurri et al. (2025).
Subtaxa
Anacoracoidei, Asterospondyli, Centrobati, Cooperodon (syn. Cooperella), Ctenacanthoidei, Fortscottella, Galeomorphi, Hammondella, Heterodontoidea, Idiacanthus, Kirkella, Moreyella, Notidani, Notidanidae, Notidanoidei, Palaeosquali, Rajae, Rhinae, Rhinoraji, Scyllidae, Spinacidi, Squali, Squalimorphi, Statodonti, Tectospondyli, Trirostri, Trygonidae
Synonymy list
Year | Name and author |
---|---|
1898 | Selachii Gadow p. 5 |
1902 | Selacha Hay p. 274 |
1904 | Selachii Case p. 74 |
1904 | Selachii Eastman p. 71 |
1906 | Selachii Andrews p. 317 |
1911 | Selachii Jaekel p. 55 |
1912 | Selachii Fedorowski p. 55 |
1916 | Selachii Woodward p. 3 |
1933 | Selachii Gunnell |
1934 | Selachii Säve-Söderbergh p. 17 |
1963 | Selachii Jordan p. 590 |
1970 | Selachii Applegate p. 393 |
1971 | Selachii Sykes p. 13 |
1977 | Selachii Herman p. 17 |
1978 | Selachii Case p. 180 |
1979 | Selachii Case p. 79 |
1981 | Selachii Thurmond and Jones p. 39 |
1987 | Selachii Kumar and Loyal p. 62 |
1988 | Selachii Case and Schwimmer p. 291 |
2011 | Selachii Long p. 242 |
2016 | Selachii Nelson et al. p. 58 |
2019 | Selachii Ebersole et al. p. 15 |
2024 | Selachii Ebersole et al. p. 4 |
2025 | Selachii Cicimurri et al. p. 8 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
Unr. Selachii [shark]
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G. †Cooperodon Whitley 1956
+
†Cooperodon typicalis Gunnell 1933
Invalid names: Cooperella Gunnell 1933 [replaced]
Superor. †Galeomorphi
+
G. †Erquitaia Cappetta 1989
Or. Heterodontiformes Berg 1940 [bullhead shark]
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Fm. Heterodontidae Gray 1851
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G. †Acrodonchus Fraas 1889
G. †Centracion Gray 1831
G. †Centrodus Giebel 1848
G. †Chalazacanthus Davis 1883
G. †Drepanephorus Egerton 1872
G. †Echinodus Davis 1884
G. †Gyropleurodus Gill 1862
G. Heterodontus de Blainville 1816 [bullhead shark]
+
†Heterodontus boussioni Guinot et al. 2013
†Heterodontus cainozoicus Pledge 1985
†Heterodontus canaliculatus Egerton and Woodward 1889
†Heterodontus carerens Kriwet 1999
†Heterodontus creamridgensis Case et al. 2001
†Heterodontus duffini Thies 1983
†Heterodontus havreensis Herman 1977
†Heterodontus laevis Guinot et al. 2013
†Heterodontus lerichei Casier 1943
†Heterodontus lonzeensis Herman 1977
†Heterodontus maisierensis Herman 1977
Heterodontus philippi Bloch and Schneider 1801
†Heterodontus pineti Fedorowski 1912
†Heterodontus polonicus Rees 2005
Heterodontus portujacksoni Meyer 1793 [Port Jackson shark]
†Heterodontus rugosus Agassiz 1839
†Heterodontus semirugosus Plieninger 1847
†Heterodontus sowasheense Case 1994
†Heterodontus upnikensis Dalinkevičius 1935
†Heterodontus vincenti Leriche 1905
†Heterodontus wardensis Cassier 1966
Heterodontus woodwardi Casier 1946
Invalid names: Cestracion Cuvier 1817 [synonym], Heterodontobatis Landemaine 1991 [synonym]
G. †Hybodopsis Barkas 1878
G. †Paracestracion Koken in Zittel 1911
+
†Paracestracion bellis Underwood and Ward 2004
†Paracestracion falcifer Wagner 1857
†Paracestracion pectinatus Guinot et al. 2014
†Paracestracion sarstedensis Thies 1983
†Paracestracion viohli Kriwet 2008
G. †Psilacanthus Quenstedt 1858
G. †Pycnacanthus Fischer von Waldheim 1852
G. †Rhabdiodus
G. †Selachidea Quenstedt 1852
G. †Styracodus
G. †Tropidodus Gill 1862
Invalid names: Hybodontoidei Owen 1846 [empty]
G. †Hypsobatis Cappetta 1992
G. †Onchopristus
G. †Rajorhina Jaekel 1894
G. †Youssoubatis Cappetta 1992
G. †Idiacanthus Gunnell 1933
G. †Kirkella Gunnell 1933
+
†Kirkella elliptica Gunnell 1933
†Kirkella indentata Gunnell 1933
†Kirkella typicalis Gunnell 1933
G. †Moreyella Gunnell 1933
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†Moreyella aviculiformis Gunnell 1933
†Moreyella trilobata Gunnell 1933
†Moreyella typicalis Gunnell 1933
Fm. Notidanidae Bonaparte
+
G. †Xenodolamia Leidy 1877
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†Xenodolamia barbadica Casier 1958
†Xenodolamia eocaena Woodward 1889
†Xenodolamia pravus Leidy 1877
†Xenodolamia simplex Leidy 1877
Subor. Squali Müller and Henle 1838
+
Invalid names: Petalodontoidea Hay 1902 [empty], Squaloidea [empty]
Superor. †Squalimorphi
+
Or. †Echinorhiniformes
+
Fm. Echinorhinidae
+
G. Echinorhinus
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†Echinorhinus blakei Agassiz 1856
†Echinorhinus lapaoi Antunes and Cappetta 2002
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Invalid names: Echinorhinus maremagnum Bogan 2017 [synonym]
†Echinorhinus spinosus Gmelin 1789
†Echinorhinus vielhus Guinot et al. 2014
†Echinorhinus wadanohanaensis Kitamura 2013
Unr. †Squalida Nelson 2016
+
Unr. Squaliformes Goodrich 1909
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Fm. Centrophoridae Bleeker 1859 [gulper shark]
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G. †Centrodeania Feichtinger et al. 2024
G. Centrophorus Müller and Henle 1837
G. Deania Jordan and Snyder 1902
Fm. Dalatiidae Gray 1851
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G. †Acrosqualiolus Adnet 2006
G. †Angoumeius Adnet et al. 2006
G. Dalatias Rafinesque 1810
G. †Eosqualiolus Adnet 2006
G. †Hessinodon Cappetta et al. 2019
G. Isistius Gill 1864
G. †Oligodalatias Welton 2016
G. †Squaliodalatias Adnet et al. 2006
G. Squaliolus Smith and Radcliffe 1912
Fm. Etmopteridae Fowler 1941
+
G. †Eoetmopterus Muller and Schollmann 1989
G. Etmopterus Rafinesque 1810
G. †Incognitorapax Feichtinger et al. 2024
G. Miroscyllium Shirai and Nakaya 1990
G. †Orthechinorhinus Adnet 2006
G. †Paraetmopterus Adnet 2006
G. †Proetmopterus Siverson 1993
G. Trigonognathus Mochizuki and Ohe 1990
G. †Gibbechinorhinus Cappetta 1990
G. †Paraechinorhinus
G. †Pseudoechinorhinus Pfeil 1983
Fm. Scymnorhinidae
+
G. †Borborodes Gistel 1848
G. †Cirrhigaleus Tanaka 1912
G. †Euprotomicrus Gill 1864
G. †Leius Kner 1865
G. Scymnorhinus Bonaparte 1846
Fm. Somniosidae Jordan 1888 [sleeper shark]
+
G. Centroscymnus Barbosa du Bocage and Brito Capello 1864
G. Centroselachus Garman 1913
G. †Cretascymnus Cappetta 1980
G. †Heteroscymnus Tanaka 1912
G. †Laemargus Müller and Henle 1838
G. †Leiodon Wood 1847
G. †Palaeocentroscymnus Pollerspöck 2018
G. †Rhinoscymnus Gill 1864
G. †Scymnodalatias Garrick 1956
G. Somniosus Le Sueur 1818 [sleeper shark]
Fm. Squalidae Bonaparte 1834 [dogfish shark]
+
G. †Acanthidium Lowe 1839
G. †Acanthorhinus Blainville 1816
G. †Atractophorus Gilchrist 1922
G. †Centrophoroides Davis 1887
G. †Centroscyllium Müller and Henle 1838
G. †Centrosqualus Signeux 1950
G. †Entoxychirus Gill 1862
G. †Lepidorhinus Bonaparte 1845
G. †Machephilus Johnson 1867
G. †Megasqualus Herman 1982
G. †Microetmopterus Siverson 1993
G. †Nasisqualus Smith 1912
G. †Paracentroscyllium Alcock 1899
G. †Protocentrophorus Adnet et al. 2008
G. †Protosqualus Cappetta 1977
G. Scymnodon Bocage and Capello 1864
G. †Spinax Agassiz 1837
G. †Zameus Jordan and Fowler 1903
Invalid names: Dalatiinae Gray 1851 [empty], Spinacidae [synonym], Squalinae Bonaparte 1834 [empty]
Invalid names: Dalatioidea Carvalho 1996 [invalid subgroup]
Unr. †Squatinida
+
Unr. Squatiniformes Buen 1926
+
Fm. Squatinidae Bonaparte 1838 [angel shark]
+
G. †Cretasquatina Maisey et al. 2020
G. †Phorcynis Thiollière 1854
G. †Squalraia De la Pylaie 1835
G. †Squatina Dumeril 1806
Invalid names: Protospinaciformes [empty]
Invalid names: Pristiphoriformes [empty]
Fm. Trygonidae Müller and Henle 1837
+
G. †Cyclobatis Egerton 1844
+
†Cyclobatis longicaudatus Woodward 1942
†Cyclobatis major Davis 1887
†Cyclobatis oligodactylus Egerton 1844
†Cyclobatis tuberculatus Cappetta 1980
Invalid names: Anacoracoidei [empty], Centrobati Jaekel 1911 [empty], Heterodontoidea Hay 1902 [empty], Notidani Jaekel 1911 [empty], Notidanoidei [empty], Palaeosquali Jaekel 1911 [empty], Rhinae Jaekel 1911 [empty], Rhinoraji Jaekel 1911 [empty], Scyllidae [empty], Spinacidi Jaekel 1911 [empty], Statodonti Jaekel 1911 [empty], Trirostri Jaekel 1911 [empty]
Diagnosis
No diagnoses are available