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Tropidoceras
Taxonomy
Tropidoceras was named by Hyatt (1867) [Sepkoski's age data: J Plie-l Sepkoski's reference number: 302]. It is not extant.
It was assigned to Acanthopleuroceratinae by Bremer (1965), Frebold (1970), Braga and Rivas (1985), Thomson and Smith (1992), Smith and Tipper (1996) and Sepkoski (2002); to Acanthopleuroceratidae by Meister and Friebe (2003) and Hillebrandt (2006); and to Tropidoceratinae by Howarth (2013).
It was assigned to Acanthopleuroceratinae by Bremer (1965), Frebold (1970), Braga and Rivas (1985), Thomson and Smith (1992), Smith and Tipper (1996) and Sepkoski (2002); to Acanthopleuroceratidae by Meister and Friebe (2003) and Hillebrandt (2006); and to Tropidoceratinae by Howarth (2013).
Species
T. actaeon, T. atuelense, T. calliplocoides, T. calliplocum (syn. T. stefanii, T. sparsicosta), T. demonense, T. ellipticum, T. erythraeum, T. flandrini (syn. Harpoceras zancleanum), T. frischmanni, T. futtereri, T. hamulatum, T. heterogeneum, T. masseanum (syn. T. lineatum), T. mediterraneum (syn. Harpoceras galatense), T. rotundum, T. rursicosta, T. semilaevis, T. stahli, T. stahliforme, T. zitteli
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1867 | Tropidoceras Hyatt |
| 1965 | Tropidoceras Bremer |
| 1970 | Tropidoceras Frebold |
| 1985 | Tropidoceras Braga and Rivas p. 571 |
| 1992 | Tropidoceras Thomson and Smith p. 19 |
| 1996 | Tropidoceras Smith and Tipper p. 37 |
| 2002 | Eremiticeras Faraoni et al. |
| 2002 | Tropidoceras Sepkoski |
| 2003 | Tropidoceras Meister and Friebe |
| 2006 | Tropidoceras Hillebrandt p. 87 |
| 2013 | Tropidoceras Howarth p. 55 |
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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. †Tropidoceras Hyatt 1867
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†Acanthopleuroceras actaeon aegion d'Orbigny 1844
†Tropidoceras actaeon d'Orbigny 1844
†Tropidoceras atuelense Hillebrandt 2006
†Tropidoceras calliplocoides Spath 1923
†Tropidoceras calliplocum Gemmellaro 1884
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Invalid names: Tropidoceras sparsicosta Spath 1923 [synonym], Tropidoceras stefanii Fucini 1899 [synonym]
†Tropidoceras demonense Gemmellaro 1884
†Tropidoceras ellipticum Sowerby 1815
†Tropidoceras erythraeum Gemmellaro 1884
†Tropidoceras flandrini Dumortier 1869
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†Tropidoceras flandrini flandrini Dumortier 1869
†Tropidoceras flandrini obtusum Futterer 1983
Invalid names: Harpoceras zancleanum Gemmellaro 1884 [synonym]
†Tropidoceras flandrini densicosta Futterer 1893
†Tropidoceras frischmanni Oppel 1862
†Tropidoceras futtereri Spath 1923
†Tropidoceras hamulatum Hillebrandt 2006
†Tropidoceras heterogeneum Meister et al. 2011
†Tropidoceras masseanum d'Orbigny 1844
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Invalid names: Tropidoceras lineatum Spath 1923 [synonym]
†Tropidoceras mediterraneum Gemmellaro 1884
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Invalid names: Harpoceras galatense Gemmellaro 1884 [synonym]
†Tropidoceras rotundum Futterer 1893
†Tropidoceras rursicosta Buckman 1918
†Tropidoceras semilaevis Fucini 1899
†Tropidoceras stahli Oppel 1856
†Tropidoceras stahliforme Rakús and Guex 2002
†Tropidoceras zitteli Fucini 1899
Invalid names: Eremiticeras Faraoni et al. 2002 [synonym]
Diagnosis
No diagnoses are available