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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), 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), 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 et al. 2016
†Trematoceras insperatum Schastlivceva 1988
†Trematoceras lytosiphon Gemmellaro 1904
†Trematoceras mangishlakense Schastlivceva 1981
†Trematoceras osawaense Niko and Ehiro 2024
†Trematoceras solidum Schastlivceva 1988
†Trematoceras subcampanile Kiparisova 1954
†Trematoceras vulgare Schastlivceva 1981
†Trematoceras watanabei Niko and Ehiro 2020
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class | |||||
| Reference: Kiessling 2004 | |||||
Collections (110 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Smithian | Russian Federation | T. sp. (214553) T. subcampanile (90221) | |
| Smithian | Vietnam | T. sp. (143595) | |
| Smithian | Afghanistan (Pakhtia) | T. dubium (44121) | |
| Smithian | Russian Federation (Primorye) | T. sp. (47276 47286) | |
| Olenekian | Russian Federation (Yakutia) | T. boreale, T. clarum (45912) | |
| Olenekian | Russian Federation (Siberia) | T. campanile (72350 72359) T. sp. (72347) | |
| Olenekian | Kazakhstan | T. sp. (72328 72329 72332 72337 72339 72422 72424) | |
| Spathian | Russian Federation (Primorye) | T. sp. (47298) T. subcampanile (47282) | |
| Spathian | Japan | T. hikichii (173664) T. osawaense (224865) | |
| Spathian | Romania | T. memorabile, T. potissimum (199550) T. moderatum (216985) T. potissimum (216982 216983) | |
| Spathian | Russian Federation | T. campanile (123495) | |
| Spathian | USA (Idaho) | Orthoceratida indet. (202145) T. sp. (202193 202195 202197) | |
| Aegean | Romania | T. moderatum (199554) | |
| Anisian | Bosnia and Herzegovina | Orthoceras campanile (206732) Orthoceras dubium (206722 206731) | |
| Anisian | Russian Federation | T. sp. (124551 124576) T. spitiense (124575) | |
| Anisian | Nepal (Byans) | Orthoceras campanile (206207) | |
| Anisian | India (Himachal Pradesh) | Orthoceras campanile (206199) | |
| Anisian | Japan (Miyagi) | T. watanabei (214972 239304) | |
| Anisian | Hungary | Michelinoceras campanile (128442 128444 128445) | |
| Anisian | Austria (Innsbruck) | Orthoceras campanile (202274) | |
| Anisian | Austria (Tyrol) | Orthoceras campanile (211799) | |
| Anisian | India | Orthoceras campanile (85465 206200) | |
| Anisian - Ladinian | Italy (Udine) | Orthoceras campanile (201597) | |
| Middle Triassic | Italy (Trento) | Orthoceras campanile (202272 202273) | |
| Pelsonian - Illyrian | Austria | Orthoceras campanile, Orthoceras politum (186975) | |
| Pelsonian - Tuvalian | Türkiye (Anatolia) | Orthoceras campanile (204511) | |
| Illyrian | USA (Nevada) | Michelinoceras campanile (33198 38922 38925 38927 40760 44034 57089 110987 142860 142870 143014 143023 143217) Orthoceras campanile (33225) | |
| Illyrian | Switzerland (Ticino) | Michelinoceras campanile (44686 44687 44688 44690 44691) T. elegans (44683 44693 44694 44698 44701 44703 220837 230723 234454 234455) | |
| Illyrian | Austria | Orthoceras campanile (136996) | |
| Illyrian | Hungary (Veszprem) | Michelinoceras campanile (43671) | |
| Fassanian | Switzerland | T. elegans (180486) | |
| Fassanian | Switzerland (Ticino) | T. elegans (44709) | |
| Ladinian | Italy (Udine) | Orthoceras politum (211815) | |
| Ladinian | Italy (South Tyrol) | Orthoceras campanile (205129) Orthoceras elegans (205132 205136 205137) | |
| Ladinian | Russian Federation | T. sp. (124559) | |
| Ladinian | Afghanistan | Trematoceras indet. (44173) | |
| Ladinian | Italy (Lecco) | Orthoceras campanile (211850) | |
| Julian | Italy | Orthocera freieslebense, Orthocera politum (145649) Orthoceras elegans (171160) T. elegans (163817) | |
| Julian | Austria | Orthoceras dubium (159521 159524 159526 159528 159532 159553) | |
| Julian | Romania | Orthoceras politum (160170) | |
| Carnian | Bosnia and Herzegovina | Orthoceras campanile (206617) Orthoceras dubium (206614) | |
| Carnian | Italy (South Tyrol) | Orthoceras dubium (205157) | |
| Lacian | Austria | Orthoceras dubium (159516 159899) | |
| Alaunian | Austria | Orthoceras dubium (159515) |