Rulon Creek Sample 12, Munugudzhak River, Omolon Basin (Permian of Russian Federation)

Where: Russian Federation (63.8° N, 159.9° E: paleocoordinates 57.5° N, 14.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• 8 m thick. Jakutoproductus insignis-Merismopteria permiana zone

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified, fine-grained, gray, calcareous sandstone

• Gray, fine-grained, calcareous, medium and thickly bedded sandstone

Size class: macrofossils

Preservation: mold/impression

Collected by Biakov, Ganelin in 1999

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 124853: authorized by Matthew Clapham, entered by Matthew Clapham on 25.02.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Actinodontida - Oriocrassatellidae
Oriocrassatella victori n. sp. Biakov 2005 clam
 Pectinida -
Kolymopecten sp. Biakov 2012 scallop