Where: Russian Federation (61.3° N, 145.2° E: paleocoordinates 72.8° N, 37.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tas Formation, Roadian (272.3 - 268.8 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: M. M. Astaf'yeva. 1987. The Permian bivalved molluscs Parainoceramus and Kolymia. Paleontological Journal 20(4):23-31 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101636: authorized by Matthew Clapham, entered by Matthew Clapham on 28.12.2010

Creative Commons license: CC BY (attribution)