Tanggula Mountains, Yanshiping Section, Xiali Formation (Jurassic of China)

Where: Qinghai, China (33.3° N, 92.0° E: paleocoordinates 25.0° N, 89.3° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Xiali Formation (Yanshiping Group), Callovian (166.1 - 163.5 Ma)

• 30 cm thick shell bed

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified, shelly/skeletal siliciclastic sediments

• The province represents extensive marginal marine environments ranging from nearshore shelf to restricted embayments, lagoons and freshwater lakes.
• The Xiali Fm at Yanshiping is composed of fine grained sandstones, argillites and shales.

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 37884: authorized by Martin Aberhan, entered by Sabine Nürnberg on 27.03.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Malleidae
 Mytilida - Mytilidae