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Stacheoceras chaotianense
Taxonomy
Stacheoceras chaotianense was named by Zhao et al. (1978). Its type specimen is NIGP 14826 and is a 3D body fossil. Its type locality is Mingyuexia, north limb of anticline, Chaotian Mb, Chaotian, Guangyuan County, which is in a Changhsingian deep-water mudstone in the Dalong Formation of China.
Synonymy list
| Year | Name and author |
|---|---|
| 1978 | Stacheoceras chaotianense Zhao et al. p. 78 figs. Pl 8, figs 19-23; text-fig 23 |
| 1990 | Stacheoceras chaotianense Bogoslovskaya p. 73 |
| 2002 | Stacheoceras chaotianense Leonova |
| 2018 | Stacheoceras chaotianense Leonova p. 242 |
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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.
†Stacheoceras chaotianense Zhao et al. 1978
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 9.40 | - | - | 9.40 | - | |
| shell diameter | 2 | 22.1 | 17.0 | 28.8 | 22.9 | 8.34 | |
| shell inflation | 2 | 2.00 | - | - | 2.00 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Changhsingian or 254.14000 to 251.90200 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Changhsingian | China (Zhejiang) | Stacheoceras chaotianense (121649) | |
| Changhsingian | China (Sichuan) | Stacheoceras chaotianense (type locality: 98048) |