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Anagymnotoceras
Taxonomy
Anagymnotoceras was named by McLearn (1946) [Sepkoski's age data: Tr Anis-m Sepkoski's reference number: 302].
It was assigned to Ceratitidae by McLearn (1969); to Beyrichitinae by Tozer (1981), Tozer (1994); and to Ceratitida by Sepkoski (2002).
It was assigned to Ceratitidae by McLearn (1969); to Beyrichitinae by Tozer (1981), Tozer (1994); and to Ceratitida by Sepkoski (2002).
Synonymy list
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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. †Anagymnotoceras McLearn 1946
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†Anagymnotoceras columbianum McLearn 1946
†Anagymnotoceras dulanense Wang and Chen 1979
†Anagymnotoceras favretense Bucher 1992
†Anagymnotoceras ino McLearn 1948
†Anagymnotoceras spivaki McLearn 1946
†Anagymnotoceras tozeri McLearn 1969
†Anagymnotoceras variabilis Bucher 1992
†Anagymnotoceras wrighti McLearn 1946
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 27 | 20.4 | 10.9 | 33.3 | 21.4 | 6.21 | |
| shell diameter | 27 | 45.2 | 25.0 | 90.0 | 46.5 | 14.1 | |
| shell inflation | 27 | 15.5 | 9.20 | 30.6 | 15.4 | 5.46 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Collections (36 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Anisian | USA (Nevada) | A. spivaki (114616) | |
| Bithynian | Svalbard and Jan Mayen | A. wrighti (97314) | |
| Bithynian | Canada (Nunavut) | A. tozeri (103402 103403) | |
| Bithynian | Canada (British Columbia) | A. columbianum (137685) A. tozeri (137516) A. varium (137096 139031 139051 139059 141640 141649) Gymnotoceras helle (137068) Gymnotoceras ino (137069) Gymnotoceras varium, Gymnotoceras helle, Gymnotoceras columbianum (137067) | |
| Bithynian | China (Qinghai) | A. dulanense (102902) | |
| Bithynian | USA (Nevada) | A. favretense (112769) A. sp. (112787) A. variabilis (112754 112755 112788) | |
| Bithynian - Pelsonian | Svalbard and Jan Mayen | A. sp. (97308) A. varium (97306) | |
| Bithynian - Pelsonian | Canada (Alberta) | A. wrighti (105329) | |
| Pelsonian | USA (Nevada) | A. sp. C (105077) A. spivaki (105178 106213 107730) | |
| Pelsonian | Canada (British Columbia) | A. spivaki (197419) Gymnotoceras wrighti (137070) Hollandites spivaki (177565) Hollandites spivaki, A. wrighti (139032) | |
| Pelsonian | Russian Federation | A. helle (151176) A. ino (151197) | |
| Pelsonian | Svalbard and Jan Mayen (Spitsbergen) | A. varium (211376) | |
| Illyrian | Canada (British Columbia) | Gymnotoceras wrighti (216620) |