Where: Qinghai, China (33.3° N, 92.0° E: paleocoordinates 24.0° N, 89.2° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Suwa Formation (Tanggula Group), Oxfordian (163.5 - 157.3 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 limestone and lithified, fine-grained sandstone
Size class: macrofossils
Preservation: mold/impression
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 37882: authorized by Martin Aberhan, entered by Sabine Nürnberg on 27.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Modiolus (Modiolus) imbricatus Sowerby 1818 mussel
Lycettia yanshipingensis n. sp. mussel | |
Chlamys laevis scallop | |
Protocardia (Protocardia) stricklandi Morris and Lycett 1853 cockle | |
Arcticidae indet. Newton 1891 clam
Pronoella (Pronoella) sp. Fischer 1887 clam | |
Pleuromya calceiformis Phillips 1875 clam | |
Myopholas multicostata Agassiz 1842 clam | |