Where: Russian Federation (63.6° N, 159.9° E: paleocoordinates 57.6° N, 14.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Nam Formation, Sakmarian (293.5 - 290.1 Ma)

• Lower Permian, Sakmarian Stage, lower Ogonerian Horizon, part of Nam Formation

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression

Collected by N.V. Popkov

• Repository: SVKNII

Primary reference: A. S. Biakov. 2019. Bivalves of northeast Asia at the Carboniferous-Permian transition. Paleontological Journal 53:241-251 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 202201: authorized by Matthew Clapham, entered by Matthew Clapham on 29.06.2019

Creative Commons license: CC BY (attribution)