Where: Russian Federation (54.5° N, 161.4° E: paleocoordinates 56.3° N, 164.1° E)

• coordinate estimated from map

• local area-level geographic resolution

When: Tyushevskaya Formation, Rupelian to Rupelian (33.9 - 20.4 Ma)

• Corredsponds to the lower part of the Pakhachin Horizon and the Alugin Horizin in Koryak Upland and northeastern Kamchatka.

• formation-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified siltstone

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 50079: authorized by Wolfgang Kiessling, entered by Sabine Nürnberg on 06.05.2005

Creative Commons license: CC BY (attribution)