Nyaukul'kan River, Lower Boguchany Svita, Orulgan Mountains (Permian of Russian Federation)

Where: Russian Federation (70.0° N, 128.0° E: paleocoordinates 62.8° N, 33.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Boguchan Formation, Wordian (268.8 - 265.1 Ma)

• Lower Boguchan subsuite

•Originally entered as Roadian, but the Boguchan Formation is Wordian according to Biakov et al. (2012).

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the PIN

Primary reference: M. M. Astaf'yeva. 1987. The Permian bivalved molluscs Parainoceramus and Kolymia. Paleontological Journal 20(4):23-31 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101644: authorized by Matthew Clapham, entered by Matthew Clapham on 28.12.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Myalinida - Kolymiidae
Kolymia astafievae n. sp.2, Kolymia yurii, "Kolymia (Cyrtokolymia) aurita" = Cyrtokolymia aurita1
Kolymia astafievae n. sp.2 Biakov 2012 clam
Kolymia (Cyrtokolymia) nebulae in Astafieva, 1993 (pl 16, fig 5)
Kolymia yurii Astaf'yeva 1987 clam
"Kolymia (Cyrtokolymia) aurita" = Cyrtokolymia aurita1 Astaf'yeva 1988 clam