List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Testudines
- Xinjiangchelyidae
|
||||||||||
|
Tienfuchelys tzuyangensis n. gen., n. sp.
Young and Chow 1953
|
1 specimen | |||||||||
| IVPP V711, holotype partial skeleton | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Sichuan |
| Coordinates: | 30.1° North, 104.7° East (view map) | ||
| Paleocoordinates: | 30.1° North, 109.2° 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: formation assignment questionable
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: | red sandy claystone |
| Includes fossils? | Y |
| Lithology description: red sandy clay | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | IVPP |
Metadata
| Database number: | 131873 | ||
| Authorizer: | R. Benson | Enterer: | R. Benson |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2012-08-01 00:11:18 | Last modified: | 2022-05-06 03:37:32 |
| Access level: | the public | Released: | 2012-08-01 00:11:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 42512. | C.-C. Young and M.-C. Chow. 1953. New fossil reptiles from Szechuan China. Acta Palaeontologica Sinica 1(3):87-109 [R. Benson/R. Benson/P. Mannion] |