Classification of Goto and Okura 2004

G. †Petalodus
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†Petalodus acuminatus Agassiz 1838
Subcl. Elasmobranchii Bonaparte 1838 [elasmobranch]
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Or. †Ctenacanthiformes Cappetta 1988
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Fm. †Ctenacanthidae Dean 1909
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G. †Cladodus Agassiz 1843
Or. †Eugeneodontiformes Zangerl 1981
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Fm. †Agassizodontidae Zangerl 1981
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G. †Agassizodus St. John and Worthen 1875
Subcl. Holocephali Bonaparte 1832 [chimaera]
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Superor. †Holocephalomorpha Lund 1986
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Or. †Cochliodontiformes Obruchev 1953
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Fm. †Cochliodontidae Owen 1867
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G. †Cyrtonodus Davis 1884
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†Cyrtonodus brevis Goto and Okura 2004
†Cyrtonodus fukujiensis Goto and Okura 2004
†Cyrtonodus nishioi Goto and Okura 2004
G. †Poecilodus Agassiz 1843
Invalid names: Paraselachiamorpha Lund 1977 [empty]