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Thrincoceras
Taxonomy
Thrincoceras was named by Hyatt (1893) [Sepkoski's age data: C Vise P Wc Sepkoski's reference number: 524]. Its type is Thrincoceras depressum.
It was assigned to Nautilida by Sepkoski (2002); and to Trigonoceratidae by Teichert et al. (1964) and Korn et al. (2022).
It was assigned to Nautilida by Sepkoski (2002); and to Trigonoceratidae by Teichert et al. (1964) and Korn et al. (2022).
Species
T. depressum (type species), T. devolvere, T. hibernicum, T. hyatti, T. kentuckiense, T. subquadratum
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1893 | Thrincoceras Hyatt |
1964 | Thrincoceras Teichert et al. p. 431 |
2002 | Thrincoceras Sepkoski |
2022 | Thrincoceras Korn et al. p. 115 |
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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. †Thrincoceras Hyatt 1893
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†Thrincoceras depressum Hyatt 1893
†Thrincoceras devolvere Korn et al. 2022
†Thrincoceras hibernicum Foord 1891
†Thrincoceras hyatti Foord 1900
†Thrincoceras kentuckiense Hyatt 1893
†Thrincoceras subquadratum Shimanskiy 1990
Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 2 | 25.9 | 13.7 | 49.0 | 31.4 | 25.0 | |
shell diameter | 2 | 72.9 | 43.2 | 123.0 | 83.1 | 56.4 | |
shell inflation | 2 | 31.3 | 20.9 | 47.0 | 34.0 | 18.5 |
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Source: o = order, c = class | |||||
References: Kiessling 2004, Kiessling 2003 |
Age range: base of the Chadian to the top of the Artinskian or 346.70000 to 279.30000 Ma
Collections (7 total)
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Ivorian - Chadian | Ireland | T. hyatti (76515) | |
Chadian | Czech Republic | T. hibernicum (38091) | |
Chadian | Algeria | T. devolvere (224275) | |
Bashkirian | Russian Federation (Verkhoyansk) | T. verkhoyanicum (44259) | |
Artinskian | Russian Federation | T. subquadratum (95674 95675 95676) |