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Hammatoceras
Taxonomy
Hammatoceras was named as a genus. It is not extant.
It was reranked as Ammonites (Hammatoceras) by Denckmann (1887).
It was assigned to Ammonites by Denckmann (1887); to Ammonoidea by Sepkoski (2002); to Hammatoceratinae by Kovács (2009) and Howarth (2013); and to Hammatoceratidae by Benzaggagh et al. (2022).
It was reranked as Ammonites (Hammatoceras) by Denckmann (1887).
It was assigned to Ammonites by Denckmann (1887); to Ammonoidea by Sepkoski (2002); to Hammatoceratinae by Kovács (2009) and Howarth (2013); and to Hammatoceratidae by Benzaggagh et al. (2022).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1887 | Ammonites (Hammatoceras) Denckmann |
| 1898 | Chartronia Buckman |
| 1921 | Pachammatoceras Buckman |
| 1997 | Accardia Cresta |
| 2002 | Hammatoceras Sepkoski |
| 2009 | Accardia Kovács |
| 2009 | Hammatoceras Kovács |
| 2013 | Hammatoceras Howarth p. 103 |
| 2022 | Hammatoceras Benzaggagh et al. p. 21 |
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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. †Hammatoceras
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†Hammatoceras insigne Schubler 1831
†Hammatoceras lorteti Dumortier 1874
†Hammatoceras pachu Buckman 1921
†Hammatoceras semilunatum Quenstedt 1885
†Hammatoceras sieboldi Oppel 1862
†Hammatoceras simulator Monestier 1921
†Hammatoceras trigonatum Quenstedt 1885
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Invalid names: Hammatoceras cappucinum Buckman 1921 [synonym]
Invalid names: Accardia Cresta 1997 [synonym], Chartronia Buckman 1898 [synonym], Pachammatoceras Buckman 1921 [synonym]
Diagnosis
No diagnoses are available