Marine Bivalvia of Ol'khovskaya Suite in Koryak Upland (Eocene to of Russian Federation)

Where: Russian Federation (62.3° N, 175.2° E: paleocoordinates 66.1° N, 178.6° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Ol'khovskaya Formation, Bartonian to Bartonian (41.3 - 33.9 Ma)

• Regularly overlapped by the Mallenskaya Suite. Corresponds to the Gailkhavilan Horizon in Koryak Upland and northeastern Kamchatka.

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified siltstone and lithified claystone

• Thin stratified hard siltstones, claystones, scarcely occur sandstones. Thickness 700m.

Size class: macrofossils

Primary reference: A. I. Kafanov and K. Ogasawara. 2004. Neogene and Paleogene Molluscan (Bivalvia) Cenozones of the Russian Northeast. Science Reports of the Institute of Geoscience, University of Tsukuba, Section B 25:9-45 [W. Kiessling/S. Nurnberg/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 50139: authorized by Wolfgang Kiessling, entered by Sabine Nürnberg on 09.05.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Carditida - Carditidae
 Nuculanida - Nuculanidae
Nuculana (Saccella) cowlitzensis Weaver and Palmer 1922 pointed nut clam
 Nuculanida - Malletiidae