Tuanbaopo, Gaoqiao: Toarcian, China
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Plesiosauria
- Rhomaleosauridae
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Bishanopliosaurus youngi n. gen., n. sp.
Dong 1980
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Romer and Lewis 1959 | 1 individual | ||||||||
| IVPP V.5869 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Chongqing | County: | Bishan |
| Coordinates: | 31.4° North, 108.2° East (view map) | ||||
| Paleocoordinates: | 34.6° North, 113.5° East | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | small collection |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| Stage: | Toarcian | 10 m.y. bin: | Jurassic 3 |
| Key time interval: | Toarcian | ||
| Age range of interval: | 184.20000 - 174.70000 m.y. ago |
Stratigraphy
| Formation: | Ziliujing | Member: | Dongyuemiao | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The Ziliujing is divided into (in ascending order) Zhenzhuchong, Dongyuemiao, Ma’anshan, and Da’anzhai members. A Toarcian age for the Dongyuemiao Member and an early Middle Jurassic age for the overlying parts of the formation is supported on the basis of macroplants (e.g. Meng et al. 2003. Acta Palaeontologica Sinica 42: 525-536) | |||||
Lithology and environment
| Primary lithology: | sandy mudstone |
| Includes fossils? | Y |
| Environment: | lacustrine - large |
| Geology comments: "Abundance of molluscs and plants characterizes the biota of the Dongyuemiao Member , indicating that the sediments are of freshwater origin and deposited in subtropical climate (Cai, 1988 ; Meng and Chen, 1997)" (Sato et al. 2003) | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection size: | 1 individuals |
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | IVPP |
Metadata
| Also known as: | Zitong, Bishan | ||
| Database number: | 98783 | ||
| Authorizer: | M. Carrano | Enterer: | H. Street |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2010-10-20 12:05:23 | Last modified: | 2022-10-11 12:49:19 |
| Access level: | the public | Released: | 2010-10-20 12:05:23 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 34052. | Z.-M. Dong. 1980. A new Plesiosauria from the Lias of Sichuan Basin. Vertebrata PalAsiatica 18(3):191-197 [M. Carrano/H. Street] |
Secondary references:
| 82845 | G. Peng, Y. Ye, Y. Gao, C. Shu, and S. Jiang. 2005. Zìgòng dìqū zhū luó jì kǒnglóng dòngwù qún [Jurassic Dinosaur Faunas in Zigong]. 1-236 [M. Carrano/M. Carrano] | |
| 34393 | A. S. Romer and A. D. Lewis. 1959. A mounted skeleton of the giant plesiosaur Kronosaurus. Breviora 112:1-15 [M. Carrano/H. Street] | |
| 34068 | T. Sato, C. Li, and X.-C. Wu. 2003. Restudy of Bishanopliosaurus youngi Dong 1980, a freshwater plesiosaurian from the Jurassic of Chongqing. Vertebrata PalAsiatica 41(1):18-33 [M. Carrano/H. Street] |