Archaa-Yuryakh River, Omoloy River, northern Orulgan mountains (Permian of Russian Federation)

Where: Russian Federation (69.5° N, 129.0° E: paleocoordinates 63.4° N, 33.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Syuren Formation, Wordian (266.9 - 264.3 Ma)

• Lower part

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

• Not stated, but entire succession is nearly certainly siliciclastic.

Size class: macrofossils

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 81994: authorized by Matthew Clapham, entered by Matthew Clapham on 20.07.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Aviculopectinidae
"? Morrisipecten sp." = Undopecten
"? Morrisipecten sp." = Undopecten Waterhouse 1982 scallop
 Pholadomyida - Edmondiidae
Edmondia sp. de Koninck 1841 clam