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)
• 65.32 m thick
• group of beds-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, ooidal, 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 101044: authorized by Matthew Clapham, entered by Matthew Clapham on 15.12.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Costirhynchopsis tienchungensis Yang and Yin 1962 | |
Pseudospiriferina sp., "Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis
Pseudospiriferina sp. Yang and Xu 1966
"Pseudospiriferina pauciplicata" = Pseudospiriferina tsinghaiensis Yang and Yin 1962 | |
Bivalvia | |
Neoschizodus laevigatus, "Leviconcha ovata" = Neoschizodus ovatus, Elegantinia ex gr. urd, Elegantinia elegans
Neoschizodus laevigatus Ziethen 1830 clam
"Leviconcha ovata" = Neoschizodus ovatus Goldfuss 1838 clam
Elegantinia elegans Dunker 1849 clam | |
Schafhaeutlia plana clam
Schafhaeutlia mellingi Hauer 1857 clam
Schafhaeutlia astartiformis Münster 1841 clam | |
? Tellina qilianshanensis tellin clam | |
Aequipecten interstriatus, Aequipecten magneauritus, Pleuronectites laevigatus, Chlamys interstriatus
Aequipecten interstriatus scallop
Aequipecten magneauritus scallop
Pleuronectites laevigatus Schlotheim 1820 scallop
Chlamys interstriatus scallop | |
Leptochondria subparadoxica scallop | |
"Neomorphotis intermedia" = Eumorphotis
"Neomorphotis intermedia" = Eumorphotis scallop | |
Plagiostoma sp., Plagiostoma pararegularis, "Plagiostoma striata" = Plagiostoma striatum, Palaeolima aff. angustestriatum
Plagiostoma sp. Sowerby 1814 file clam
Plagiostoma pararegularis file clam
"Plagiostoma striata" = Plagiostoma striatum Schlotheim 1820 file clam
Palaeolima aff. angustestriatum file clam | |
Placunopsis subplana scallop | |
Entolium discites Schlotheim 1820 scallop | |
Bakevellia acutaurita oyster
Bakevellia costata Schlotheim 1820 oyster | |
| |
"Mytilus eduliformis" = Promysidiella eduliformis
| |
Gastropoda | |
"Hologyra aff. declivis" = Naticopsis (Dicosmos) declivis
"Hologyra aff. declivis" = Naticopsis (Dicosmos) declivis Kittl 1894 snail | |
Marmolatella plana Koken 1898 snail | |
"Coelocentrus horridus" = Maclurites
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