Tawa, Lufeng (Heiguopeng): Sinemurian, China
collected by C.-C. Young 1981
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Tawasaurus minor n. gen., n. sp.
Young 1982
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2 individuals | |||||||||
| nomen dubium belonging to Prosauropoda | ||||||||||
| IVPP V11, V15 | ||||||||||
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Tritylodontidae
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Yunnania brevirostre n. gen., n. sp.
Cui 1976
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Cui 1976 | 1 individual | ||||||||
| recombined as Yunnanodon brevirostre | ||||||||||
| IVPP V 5071, skull | ||||||||||
| see common names | ||||||||||
Geography
| Country: | China | State/province: | Yunnan |
| Coordinates: | 25.2° North, 102.1° East (view map) | ||
| Paleocoordinates: | 33.8° North, 105.8° East | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| Stage: | Sinemurian | 10 m.y. bin: | Jurassic 1 |
| Key time interval: | Sinemurian | ||
| Age range of interval: | 199.50000 - 192.90000 m.y. ago |
Stratigraphy
| Formation: | Lufeng | Member: | Zhangjia'ao | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The Lufeng Formation has been divided into lower dark/dull purple beds (= Shawan Member) and upper dark/deep red beds (= Zhangjiawa Member). Luo & Wu (1994: In the Shadow of the Dinosaurs, pp. 251–270) argue on the basis of vertebrate biostratigraphy for a probable Sinemurian age for the Zhangjiawa Member and a Hettangian age for the Shawan Member. It is not clear which member this collection comes from. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Degree of concentration: | dispersed |
| Size of fossils: | macrofossils |
| Associated major elements: | all |
| Fragmentation: | occasional |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | IVPP | ||
| Collectors: | C.-C. Young | Collection dates: | 1981 |
Metadata
| Also known as: | Dawa | ||
| Database number: | 49778 | ||
| Authorizer: | M. Carrano, R. Butler | Enterer: | M. Carrano, R. Butler |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2005-04-25 14:00:35 | Last modified: | 2023-07-20 14:52:42 |
| Access level: | the public | Released: | 2005-04-25 14:00:35 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 25948. | ETE | C.-C. Young. 1982. [A new ornithopod from Lufeng, Yunnan]. Selected Works of Yang Zhungjian. Science Press, Beijing 29-35 [M. Carrano/M. Carrano] |
Secondary references:
| 43956 | G. Cui. 1976. Yunnania, a new tritylodont genus from Lufeng, Yunnan. Vertebrata PalAsiatica 14(2):85-90 [R. Butler/R. Butler] | |
| 13360 | ETE | Z. Dong. 1992. Dinosaurian Faunas of China. China Ocean Press, Beijing 1-188 [M. Carrano/M. Carrano/M. Carrano] |
| 26531 | ETE | S. E. Evans and A. R. Milner. 1989. Fulengia, a supposed early lizard reinterpreted as a prosauropod dinosaur. Palaeontology 32(1):223-230 [M. Carrano/M. Carrano] |