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Grypoceras
Taxonomy
Grypoceras was named by Hyatt (1883) [Sepkoski's age data: Tr Olen Tr Nori Sepkoski's reference number: 2,524,995].
It was reranked as Nautilus (Grypoceras) by Diener (1903).
It was assigned to Nautilus by Diener (1903); to Nautilida by Sepkoski (2002); and to Grypoceratidae by Teichert et al. (1964), Parnes (1986) and Pérez-Valera et al. (2017).
It was reranked as Nautilus (Grypoceras) by Diener (1903).
It was assigned to Nautilus by Diener (1903); to Nautilida by Sepkoski (2002); and to Grypoceratidae by Teichert et al. (1964), Parnes (1986) and Pérez-Valera et al. (2017).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1883 | Grypoceras Hyatt |
| 1903 | Nautilus (Grypoceras) Diener p. 169 |
| 1964 | Grypoceras Teichert et al. p. 432 |
| 1986 | Grypoceras Parnes |
| 2002 | Grypoceras Sepkoski |
| 2017 | Grypoceras Pérez-Valera et al. p. 179 |
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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. †Grypoceras Hyatt 1883
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†Grypoceras aemulans Kummel 1953
†Grypoceras bidorsatoides Kummel 1953
†Grypoceras brahmanicum Griesbach 1880
†Grypoceras griesbachi Diener 1895
†Grypoceras guembeli von Mojsisovics 1873
†Grypoceras haloricum von Mojsisovics 1873
†Grypoceras laubei von Mojsisovics 1873
†Grypoceras mesodicum Hauer 1846
†Grypoceras milleri Kummel 1953
†Grypoceras obtusum von Mojsisovics 1873
†Grypoceras palladii Mojsisovics 1886
†Grypoceras quadrangulum Beyrich 1866
†Grypoceras rhaeticum Engeser and Reitner 1992
†Grypoceras whitneyi Gabb 1864
†Nautilus quadrangulus brahmanicus Griesbach 1880
Diagnosis
No diagnoses are available