Classification of the genus Oryctocephalus

G. †Oryctocephalus Walcott 1886
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Oryctocephalus americanus Sundberg and McCollum 2003
Oryctocephalus elongatus Zhao et al. 1997
Oryctocephalus incurvus Lu and Chien 1974
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Invalid names: Oryctocephalus kobayashii Saito 1934 [objective synonym]
Oryctocephalus nyensis Palmer and Halley 1979
Oryctocephalus primus Walcott 1886
Oryctocephalus reticulatus Lermontova 1940
Oryctocephalus reynoldsiformis Lermontova 1940