Locality B58, B58.139, 18 km south of Wenquan army station, Qiangtang Terrane (Jurassic to of China)

Where: Qinghai, China (33.1° N, 91.8° E: paleocoordinates 23.7° N, 89.0° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yanshiping Group, Callovian to Callovian (166.1 - 152.1 Ma)

• Middle Jurassic ?Bathonian/Callovian - Upper Jurassic, Kimmeridgian; bed 139

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; lithified siliciclastic sediments

• coastal plain facies with marine incursions and some lacustrine horizons

Size class: macrofossils

Preservation: trace

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. Philosophical Transactions of the Royal Society of London A 327:53-105 [M. Aberhan/S. Nurnberg/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 68579: authorized by Martin Aberhan, entered by Sabine Nürnberg on 28.01.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Mytilida - Mytilidae
"Modiolus" sp.
"Modiolus" sp. Lamarck 1801 mussel
 Pectinida - Pectinoidae
Radulopecten sp.
Radulopecten sp. Rollier 1911 scallop
 Pectinida - Anomiidae
Placunopsis sp.
Placunopsis sp. Morris and Lycett 1853 scallop
 Cardiida - Cardiidae
Protocardia sp.
Protocardia sp. Beyrich 1845 cockle
 Cardiida - Arcticidae
Anisocardia sp., ? Antiquicyprina sp.
Anisocardia sp. Munier-Chalmas 1863 clam
? Antiquicyprina sp. Casey 1952 clam
Gastropoda
 Architaenioglossa - Ampullinidae
"? Ampullospira sp." = Ampullina (Ampullospira)
"? Ampullospira sp." = Ampullina (Ampullospira) Harris 1897 snail
Naticacean - ? Ampullospira sp.
 Ichnofossils -
Zoophycos sp.
Zoophycos sp. Massalongo 1855
trace fossil