Where: Russian Federation (63.8° N, 160.0° E: paleocoordinates 61.1° N, 13.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Jakutoproductus terekhovi - Cypricardinia eopermica zone, Munugudzhak Formation, Artinskian (290.1 - 279.3 Ma)

• Jakutoproductus terekhovi - Cypricardinia eopermica zone, beds with Cypricardinia eopermica. PJW: Was entered as Dzhigdali.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: cast

Collected by N.A. Usachev in 1983

Primary reference: A. S. Biakov. 2005. New species of astartids and pholadomyids (Bivalvia) and beds with fauna from the Lower Permian of the Omolon Massif, northeastern Asia. Paleontological Journal 39(2):133-140 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 124852: authorized by Matthew Clapham, entered by Matthew Clapham on 25.02.2012

Creative Commons license: CC BY (attribution)