Classification of the genus Bifericeras
G. †Bifericeras
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†Bifericeras nudicosta Quenstedt 1845
†Bifericeras subplanicosta Oppel 1856
Invalid names: Hemimicroceras Spath 1925 [synonym], Microceras Hyatt 1867 [replaced], Ophideroceras Spath 1925 [synonym]