Where: Qinghai, China (33.3° N, 92.0° E: paleocoordinates 25.8° N, 89.4° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Quemuoco Formation (Yanshiping Group), Bajocian (170.3 - 168.3 Ma)
• GENERAL COMMENT: bivalves are not evenly distributed throughout the sequence, but are concentrated at certain horizons, large parts of the sedimentary sequence in between being unfossiliferous.
• formation-level stratigraphic resolution
Environment/lithology: marginal marine; lithified siliciclastic sediments
Size class: macrofossils
Collection methods: chemical, mechanical,
• focus on bivalves
Primary reference: J. Yin and F. T. Fürsich. 1991. Middle and Upper Jurassic bivalves from the Tanggula Mountains, W-China. Beringeria, Würzburger geowissenschaftliche Mitteilungen 4:127-192 [M. Aberhan/S. Nurnberg/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 37885: authorized by Martin Aberhan, entered by Sabine Nürnberg on 27.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Cuneopsis" johannisboehmi, "Cuneopsis" tanggulaensis n. sp., "Potomida" ovalis, "Potomida" chaoi, "Potomida" thailandica, Lamprotula (Eolamprotula) cremeri
"Cuneopsis" johannisboehmi freshwater mussel
"Cuneopsis" tanggulaensis n. sp. freshwater mussel
"Potomida" ovalis freshwater mussel
"Potomida" chaoi freshwater mussel
"Potomida" thailandica freshwater mussel
Lamprotula (Eolamprotula) cremeri Frech 1911 freshwater mussel | |
Camptonectes (Camptonectes) auritus Schlotheim 1813 scallop | |
Kobayashites hayamii Yin 1988 oyster | |
Demospongiae | |
Hudsonella sinensis demosponge |