List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Xinjiangchelyidae
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Xinjiangchelys radiplicatus n. sp.
(Young and Chow 1953)
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1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | China | State/province: | Sichuan |
| Coordinates: | 29.6° North, 106.6° East (view map) | ||
| Paleocoordinates: | 30.0° North, 111.2° East | ||
| Basis of coordinate: | based on political unit | ||
| Geographic resolution: | small collection |
Stratigraphy
| Geological group: | Chongqing | Formation: | Shaximiao | Member: | Upper |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 'Upper Xiaximiao Formation'
Several radiometric ages have been reported for the Shaximiao Formation, including 167 Ma or 172 Ma (Zong and Shi, 1997), 167–172 Ma or 178–169 Ma (Gou et al., 2000), 163±3 Ma (Li et al., 2010), 160±4 Ma (Luo et al., 2014), 158±7 Ma (Qian et al., 2016), and 159±2 Ma (Wang et al., 2018). However, more recent studies suggest an older age; Dai et al. 2022 reported a maximum depositional age for the bone-bearing layers of the lower member of the Shaximiao formation to be Bjaocan. Zhou et al. 2022 also supported a late Middle Jurassic age for the Shaximiao Formation (Bathonian-Callovian). | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Chongqing, Xinjiangchelys radiplicatus type | ||
| Database number: | 137598 | ||
| Authorizer: | R. Benson | Enterer: | R. Benson |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2012-12-18 06:50:48 | Last modified: | 2022-05-06 03:37:55 |
| Access level: | the public | Released: | 2012-12-18 06:50:48 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 44007. | A. T. Matzke, M. W. Maisch, G. Sun, H. Pfretzschner, and H. Stöhr. 2004. A new xinjiangchelyid turtle (Testudines, Eucryptodira) from the Jurassic Qigu Formation of the southern Junggar Basin, Xinjiang, North-West China. Palaeontology 47(5):1267-1299 [R. Benson/R. Benson/P. Mannion] |