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Xiaohenautilus sinensis
Taxonomy
Xiaohenautilus sinensis was named by Xu (1988). Its type specimen is Yichang Inst Geol Min Res IV50616 and is a cast. Its type locality is Xiaohe Xh-80-C-2, Lichuan, which is in a Dienerian carbonate lime mudstone in the Ruiping Formation of China. It is the type species of Xiaohenautilus.
Synonymy list
| Year | Name and author |
|---|---|
| 1988 | Xiaohenautilus sinensis Xu p. 439 figs. Pl 4, fig 7; text-fig 2 |
| 2007 | Xiaohenautilus sinensis Zakharov and Mu p. 860 figs. 3.1-3.4, 3.7, 3.8, 4.1 |
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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.
†Xiaohenautilus sinensis Xu 1988
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 31.2 | 21.5 | 37.8 | 37.2 | 9.24 | |
| shell diameter | 4 | 58.2 | 40.5 | 82.9 | 58.9 | 18.5 | |
| shell inflation | 4 | 11.9 | 9.50 | 15.5 | 11.5 | 3.06 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Age range: Griesbachian or 251.90200 to 250.50000 Ma
Collections (10 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Griesbachian | China (Guizhou) | Xiaohenautilus sinensis (113871 198881 198882 198887 198888 198889) | |
| Griesbachian | China (Hubei) | Xiaohenautilus sinensis (204866 204867 204871) | |
| Dienerian | China (Hubei) | Xiaohenautilus sinensis (type locality: 95718) |