Level BH-2 Section A - Germig, Tibet (Triassic of China)

Where: Tibet, China (28.7° N, 86.1° E: paleocoordinates 29.1° S, 47.9° E)

• coordinate stated in text

When: Germig Formation, Rhaetian (208.5 - 201.3 Ma)

• Below ammonite Level A1

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, fine-grained, gray, calcareous sandstone and lithified siltstone

• The diverse epifauna, in combination with their common association with crinoids and a high degree of encrustation and bioerosion on the shells, suggest a shallow, warm, and low turbidity marine environment of normal salinity.

Size class: macrofossils

Primary reference: J. Yin and C. A. McRoberts. 2006. Latest Triassic–earliest Jurassic bivalves of the Germig formation from Lanongla (Tibet, China). Journal of Paleontology 80(1):104-120 [W. Kiessling/W. Kiessling]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 75199: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 26.09.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• Bivalves only
Bivalvia
 Ostreida - Cassianellidae
Cassianella sp. Beyrich 1862 oyster
3 left valves
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
more than 20 specimens from two samples
 Protobranchia -
Ryderia guangdongensis Zhang 1977 clam