Where: Qinghai, China (33.1° N, 91.8° E: paleocoordinates 23.6° N, 89.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yanshiping Group, Callovian to Callovian (164.7 - 150.8 Ma)

• Middle Jurassic ?Bathonian/Callovian - Upper Jurassic, Kimmeridgian; beds 41&45

• group of beds-level stratigraphic resolution

Environment/lithology: marginal marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: Paleontological collections made on the 1985 Geotraverse.

Primary reference: A. B. Smith and J. Xu. 1988. Palaeontology of the 1985 Geotraverse, Lhasa to Golmud. Phil. Trans. R. Soc. Lond. A 327:53-105 [M. Aberhan/S. Nurnberg] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 68572: authorized by Martin Aberhan, entered by Sabine Nürnberg on 28.01.2007