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Trematoceras
Taxonomy
Trematoceras was named by Eichwald (1851) [Sepkoski's age data: Tr Olen Tr u]. Its type is Orthoceras elegans. It is the type genus of Trematoceratidae.
It was assigned to Michelinoceratinae by Teichert et al. (1964); to Orthocerida by Sepkoski (2002); to Orthoceratidae by Shigeta and Zakharov (2009), Shigeta and Nguyen (2014) and Brayard et al. (2019); and to Trematoceratidae by Pohle and Klug (2024).
It was assigned to Michelinoceratinae by Teichert et al. (1964); to Orthocerida by Sepkoski (2002); to Orthoceratidae by Shigeta and Zakharov (2009), Shigeta and Nguyen (2014) and Brayard et al. (2019); and to Trematoceratidae by Pohle and Klug (2024).
Synonymy list
| Year | Name and author |
|---|---|
| 1851 | Trematoceras Eichwald |
| 1964 | Trematoceras Teichert et al. p. 229 |
| 2002 | Trematoceras Sepkoski |
| 2009 | Trematoceras Shigeta and Zakharov p. 44 |
| 2014 | Trematoceras Shigeta and Nguyen p. 66 |
| 2019 | Trematoceras Brayard et al. p. 27 |
| 2024 | Trematoceras Pohle and Klug p. 22 |
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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. †Trematoceras Eichwald 1851
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†Trematoceras boreale Schastlivceva 1986
†Trematoceras clarum Schastlivceva 1986
†Trematoceras elegans Muenster 1831
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Invalid names: Orthocera freieslebense Klipstein 1843 [synonym], Orthocera politum Klipstein 1843 [synonym], Orthoceras campanile Mojsisovics 1869 [synonym], Orthoceras dubium Hauer 1847 [synonym], Orthoceras freieslebense Klipstein 1843 [synonym]
†Trematoceras hikichii Niko 2016
†Trematoceras insperatum Schastlivceva 1988
†Trematoceras lytosiphon Gemmellaro 1904
†Trematoceras mangishlakense Schastlivceva 1981
†Trematoceras solidum Schastlivceva 1988
†Trematoceras subcampanile Kiparisova 1954
†Trematoceras vulgare Schastlivceva 1981
†Trematoceras watanabei Niko and Ehiro 2020
Diagnosis
No diagnoses are available