Vorkuta River, Vorkutskoe coalfield, Pechora Basin (Permian of Russian Federation)

Where: Russian Federation (67.7° N, 64.2° E: paleocoordinates 39.5° N, 37.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• Lower Lek-vorkuta Svita

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

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 113915: authorized by Matthew Clapham, entered by Matthew Clapham on 07.08.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculanida - Polidevciidae
"Nuculana flexuosa" = Polidevcia flexuosa, "Nuculana kasanensis" = Polidevcia kasanensis
"Nuculana flexuosa" = Polidevcia flexuosa Lutkevitch and Lobanova 1960 clam
"Nuculana kasanensis" = Polidevcia kasanensis de Verneuil 1845 clam
 Cardiidia - Sanguinolitidae
Vacunella dawsonensis Runnegar 1967 clam