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Grammoceras
Taxonomy
Grammoceras was named as a genus. It is not extant.
It was reranked as Arieticeras (Grammoceras) by Gemmellaro (1885); it was reranked as Harpoceras (Grammoceras) by Thevenin (1908).
It was assigned to Arieticeras by Gemmellaro (1885); to Harpoceras by Thevenin (1908); to Ammonoidea by Sepkoski (2002); and to Grammoceratinae by Howarth (2013).
It was reranked as Arieticeras (Grammoceras) by Gemmellaro (1885); it was reranked as Harpoceras (Grammoceras) by Thevenin (1908).
It was assigned to Arieticeras by Gemmellaro (1885); to Harpoceras by Thevenin (1908); to Ammonoidea by Sepkoski (2002); and to Grammoceratinae by Howarth (2013).
Species
Species lacking formal opinion data
Sister genera
Catulloceras (syn. Dactylogrammites), Dumortieria (syn. Phenakoceras, Phenakocerites, Paradumortieria), Hudlestonia, Phlyseogrammoceras (syn. Gruneria), Pleydellia (syn. Cotteswoldia, Canavarina, Walkericeras, Nadorites), Podagrosites, Pseudogrammoceras (syn. Monestieria), Pseudolillia, Shakraceras, Troitsaia, Yakounia
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Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1885 | Arieticeras (Grammoceras) Gemmellaro |
| 1908 | Harpoceras (Grammoceras) Thevenin |
| 1926 | Costigrammoceras Buckman |
| 2002 | Grammoceras Sepkoski, Jr. |
| 2013 | Grammoceras Howarth p. 87 |
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