Where: Qinghai, China (37.4° N, 99.3° E: paleocoordinates 25.5° N, 80.7° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Green Sandstone Member (Xiahuancang Formation), Dienerian (250.5 - 251.2 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, green siltstone and lithified, gray sandstone
Size class: macrofossils
Primary reference: G. C. Liu and H. F. Yin. 1983. Lower Triassic, Xihuancang Formation, Jianghe Formation, Yangkang Formation. Triassic of the southern Qilian Mountains 1-11 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 112819: authorized by Matthew Clapham, entered by Matthew Clapham on 17.07.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Bivalvia | |
|
Eumorphotis multiformis Bittner 1899 scallop
Eumorphotis inaequicostata Benecke 1868 scallop | |
|
Promyalina intermedia Chen 1976 clam | |
|
Neoschizodus laevigatus Ziethen 1830 clam | |
|
"Myoconcha" sp. Sowerby 1824 clam | |
|
Unionites fassaensis Wissmann 1841 clam | |