ammonites
Tanggula Mountains, H 212, Tuotuohe Formation (Jurassic of China)

Where: Qinghai, China (33.3° N, 91.6° E: paleocoordinates 25.2° N, 89.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Tuotuohe Formation (Yanshiping Group), Bathonian (167.7 - 164.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified limestone

• The province represents extensive marginal marine environments ranging from nearshore shelf to restricted embayments, lagoons and freshwater lakes.
• The Tuotuohe Fm is composed of limestones.

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/S. Nurnberg] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 37923: authorized by Martin Aberhan, entered by Sabine Nürnberg on 27.03.2004