Liangtoutang Formation
The Liangtoutang Formation, also referred to as the Laijia Formation is a geological formation located in Zhejiang, China. Its strata date back to the Albian to Cenomanian stages of the Cretaceous period.[1] The lithology primarily consists of red sandstone.
| Liangtoutang Formation Stratigraphic range: Albian-Cenomanian ~105.9–96 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Tiantai Group |
| Underlies | Chichengshan Formation |
| Overlies | Tangshang Formation |
| Thickness | About 300 m (980 ft) |
| Lithology | |
| Primary | Sandstone |
| Location | |
| Coordinates | 28.7°N 120.2°E |
| Approximate paleocoordinates | 36.3°N 120.0°E |
| Region | Zhejiang |
| Country |  |
| Extent | Huzhen Basin |
  Liangtoutang Formation (China)  Liangtoutang Formation (Zhejiang) | |
Fossil content
Dinosaurs
| Dinosaurs of the Liangtoutang Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Material | Notes | Images | ||
| Yueosaurus | Y. tiantaiensis | "Partial postcranial skeleton"[2] | A neornithischian | |||
| Jinyunpelta | J. sinensis | "An almost complete skull" and two partial postcranial skeletons[3] | An ankylosaurin ankylosaur |  | ||
Other fossils
- Fossil eggs
- Macroelongatoolithus xixiaensis[4]
- Pachycorioolithus jinyunensis[5]
- Testudoolithus jiangi[4]
gollark: Initial CUDA support (it is apparently maybe 10% faster on nvidia stuff, but generally the same) and nobody ever bothered to change it because all the researchers just bought from nvidia? That seems kind of implausible.
gollark: Which does make me wonder why machine learning tools aren't written against it.
gollark: Yes. This is vendor lockin. OpenCL works basically fine.
gollark: The new iGPUs are several times more powerful than my ~4 year old one apparently.
gollark: I believe they are to release discrete cards this year. Although with 10nm/7nm held up who knows.
References
- Liangtoutang Formation at Fossilworks.org
- Zheng et al., 2012
- Zheng, 2018
- Jin et al., 2007
- Lawver et al., 2016
Bibliography
- Zheng, Wenjie; Xingsheng Jin; Yoichi Azuma; Qiongying Wang; Kazunori Miyata, and Xing Xu. 2018. The most basal ankylosaurine dinosaur from the Albian–Cenomanian of China, with implications for the evolution of the tail club. Scientific Reports 8. Article number 3711. doi:10.1038/s41598-018-21924-7
- Lawver, D. R.; X. Jin; F. D. Jackson, and Q. Wang. 2016. An avian egg from the Lower Cretaceous (Albian) Liangtoutang Formation of Zhejiang Province, China. Journal of Vertebrate Paleontology 36. e1100631:1–7.
- Zheng, Wenjie; Xingsheng Jin; Masateru Shibata; Yoichi Azuma, and Fangming Yu. 2012. A new ornithischian dinosaur from the Cretaceous Liangtoutang Formation of Tiantai, Zhejiang Province, China. Cretaceous Research 34. 208–219. doi:10.1016/j.cretres.2011.11.001
- Jin, X.; Y. Azuma; F. D. Jackson, and D. J. Varricchio. 2007. Giant dinosaur eggs from the Tiantai basin, Zhejiang province, China. Canadian Journal of Earth Sciences 44. 81–88.
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