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Chinshakiangosaurus chunghoensis
Taxonomy
Chinshakiangosaurus chunghoensis was named by Yeh (1975). Its type specimen is IVPP V14474, a mandible, and it is a 3D body fossil. Its type locality is Fenghe village, Zhonghe (IVPP), which is in a Hettangian fluvial-lacustrine mudstone/sandstone in the Fengjiahe Formation of China. It is the type species of Chingshakiangosaurus, Chinshakiangosaurus.
It was considered a nomen nudum by Dong (1992); it was considered a nomen dubium by Upchurch et al. (2004).
It was considered a nomen nudum by Dong (1992); it was considered a nomen dubium by Upchurch et al. (2004).
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Chinshakiangosaurus chunghoensis Yeh p. 22 |
| 1985 | Chinshakiangosaurus zhonghonensis Zhao p. 287 |
| 2005 | Chinshakiangosaurus chunghoensis Barrett et al. p. 34A |
| 2007 | Chinshakiangosaurus chunghoensis Upchurch et al. p. 2 |
| 2009 | Chinshakiangosaurus chunghoensis Xing et al. p. 17 |
| 2010 | Chinshakiangosaurus chunghoensis Bandyopadhyay et al. p. 535 |
| 2010 | Chinshakiangosaurus chunghoensis Langer et al. p. 89 |
| 2022 | Chinshakiangosaurus chunghoensis Yao et al. p. 4 |
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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.
†Chinshakiangosaurus chunghoensis Yeh 1975
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| P. Upchurch et al. 2007 | The dentary displays a unique combination of character states, being the only known taxon in which there is a ridge on the central and caudal part of the lateral surface, and a lateral plate (which increases in height towards the rostral end of the jaws) supporting the tooth crowns labially. In addition, the cladistic analyses performed in this study indicate that the height:length ratio of the dentary (> 0.2), and the loss of the constriction between the tooth crowns and their roots, potentially represent autapomor phic reversals. |
Measurements
No measurements are available
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| Source: infrao = infraorder | |||||
| Reference: Marsh 1875 | |||||
Age range: Hettangian or 201.30000 to 199.30000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Hettangian | China (Yunnan) | Chinshakiangosaurus chunghoensis (type locality: 49779) |