Classification of Obruchev 1964

Subcl. Holocephali Bonaparte 1832 [chimaera]
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Or. †Bradyodonti Arambourg and Bertin 1958
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Fm. †Helicoprionidae Karpinsky 1911
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G. †Syntomodus Obruchev 1964
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†Syntomodus abbreviatus Obruchev 1964
G. †Metaxyacanthus Obruchev 1964
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†Metaxyacanthus rossicus Inostranzeff 1888
Invalid names: Pseudodontichthyidae Obruchev 1964 [empty]