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Ptenoceras
Taxonomy
Ptenoceras was named by Hyatt (1894) [Sepkoski's age data: D Sieg-u D Eife Sepkoski's reference number: 2,299].
It was assigned to Rutoceratidae by Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
It was assigned to Rutoceratidae by Teichert et al. (1964); and to Nautilida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1894 | Ptenoceras Hyatt |
| 1964 | Ptenoceras Teichert et al. p. 420 |
| 2002 | Ptenoceras Sepkoski |
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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. †Ptenoceras Hyatt 1894
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Diagnosis
No diagnoses are available