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Xiaoqiaoceras involutus
Taxonomy
Xiaoqiaoceras involutus was named by Brayard and Bucher (2008). Its type specimen is PIMUZ 25948 and is a 3D body fossil. Its type locality is Jinya Section Jin4, which is in a Smithian slope lime mudstone in China.
Synonymy list
| Year | Name and author |
|---|---|
| 2008 | Xiaoqiaoceras involutus Brayard and Bucher p. 36 figs. Pl 12, figs 12-16 |
| 2012 | Xiaoqiaoceras involutus Brühwiler et al. p. 137 figs. 14S-AA |
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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.
†Xiaoqiaoceras involutus Brayard and Bucher 2008
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 12.7 | 9.40 | 17.0 | 13.0 | 3.31 | |
| shell diameter | 6 | 20.3 | 15.7 | 28.0 | 20.5 | 5.19 | |
| shell inflation | 6 | 0.001 | 0.001 | 0.001 | 0.001 | - |
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: Smithian or 249.90000 to 248.10000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Smithian | India (Himachal Pradesh) | Xiaoqiaoceras involutus (139682) | |
| Smithian | China (Guangxi) | Xiaoqiaoceras involutus (97142 97145 97149 type locality: 97153) |