Where: Russian Federation (62.5° N, 139.0° E: paleocoordinates 68.6° N, 40.2° E)

• coordinate based on political unit

• small collection-level geographic resolution

When: Khaldzhin Formation, Kungurian (279.3 - 272.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Preservation: mold/impression

Primary reference: V. A. Muromtseva and V. A. Guskov. 1984. Permskie Morskie Otlozheniya I Dvustvorchatie Mollyuski Sovetskoi Arktiki 1-154 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 89367: authorized by Matthew Clapham, entered by Matthew Clapham on 17.05.2009

Creative Commons license: CC BY (attribution)