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Bifericeras
Taxonomy
Bifericeras is a genus. It is not extant.
It was assigned to Eoderoceratidae by Blau et al. (2000); to Ammonoidea by Sepkoski (2002); and to Eoderoceratinae by Howarth (2013).
It was assigned to Eoderoceratidae by Blau et al. (2000); to Ammonoidea by Sepkoski (2002); and to Eoderoceratinae by Howarth (2013).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1867 | Microceras Hyatt |
| 1925 | Hemimicroceras Spath |
| 1925 | Ophideroceras Spath |
| 2000 | Bifericeras Blau et al. p. 271 |
| 2002 | Bifericeras Sepkoski |
| 2013 | Bifericeras Howarth p. 40 |
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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.
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]
Diagnosis
No diagnoses are available