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)
• 43.71 m thick
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, shelly/skeletal, 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 101046: authorized by Matthew Clapham, entered by Matthew Clapham on 15.12.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Pleuronectites laevigatus Schlotheim 1820 scallop | |
Leptochondria subparadoxica scallop | |
"Neomorphotis sp." = Eumorphotis
"Neomorphotis sp." = Eumorphotis Bittner 1901 scallop | |
Schafhaeutlia astartiformis Münster 1841 clam | |
"Leviconcha ovata" = Neoschizodus ovatus
"Leviconcha ovata" = Neoschizodus ovatus Goldfuss 1838 clam | |
Rhynchonellata | |
Costirhynchopsis sp. Dagis 1977
Costirhynchopsis pavoplicata Xu and Liu 1983 | |
Sulcatinella sp. Dagys 1974 | |
"Sulcatinella ovata" = Qilianoconcha opima
"Sulcatinella ovata" = Qilianoconcha opima Yang and Yin 1962 | |
Aequspiriferina sp. Yang and Yin 1962
Aequspiriferina multiplicata Yang and Yin 1962 | |
"Pseudospiriferina tsinghaiensis" = Pseudospiriferina tsinghaiensis, "Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis
"Pseudospiriferina tsinghaiensis" = Pseudospiriferina tsinghaiensis Yang and Yin 1962
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis Yang and Yin 1962 | |
Yangkongia sp., "Yangkongia planofolda" = Yangkongia bifurcata
Yangkongia sp. Xu and Liu 1983
"Yangkongia planofolda" = Yangkongia bifurcata Yang and Yin 1962 | |
Lingulata | |
Orbiculoidea yangkangensis Xu and Liu 1983 |