Where: Qinghai, China (37.5° N, 99.4° E: paleocoordinates 29.8° N, 81.2° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Dajialian Formation (Junzihe Group), Anisian (247.2 - 242.0 Ma)
• 30.66 m thick
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, gray limestone
Size class: macrofossils
Primary reference: G. C. Liu and H. F. Yin. 1983. Middle Triassic, Jinzihe Formation. In Z. Y. Yang, H. F. Yin, G. R. Xu, S. B. Wu, Y. L. He, G. C. Liu, J. R. Yin (eds.), Triassic of the southern Qilian Mountains 11-21 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 101047: authorized by Matthew Clapham, entered by Matthew Clapham on 15.12.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Mytilus sp. Linnaeus 1758 mussel | |
Eopecten flagellum scallop | |
Leptochondria subillyrica scallop
Leptochondria sp. Bittner 1891 scallop | |
Rhynchonellata | |
Costirhynchopsis sp. Dagis 1977
Costirhynchopsis rhomba Yang and Yin 1962
Costirhynchopsis tienchungensis Yang and Yin 1962 | |
Triasorhynchia subglobulina Xu and Liu 1983 | |
Paralepismatina semiconica Yang and Xu 1966 | |
Hirsutella sp. Cooper and Muir-Wood 1951 | |
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis Yang and Yin 1962 | |
"Yangkongia planofolda" = Yangkongia bifurcata
"Yangkongia planofolda" = Yangkongia bifurcata Yang and Yin 1962 | |
Parantiptychia robusta Yang and Yin 1962
Qilianoconcha circularis Guo and Chen 2022
"Sulcatinella ovata" = Qilianoconcha opima Yang and Yin 1962 | |
Athyrorhynchia athyroformis Xu and Liu 1983 | |
Sulcatinella opima Yang and Yin 1962 |