Where: Russian Federation (54.5° N, 59.8° E: paleocoordinates 20.0° N, 37.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Marsdenian (318.1 - 314.6 Ma)

• Nm2c1 (corresponds to Marsdenian); Upper Namurian

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified limestone

Size class: macrofossils

Collection methods: collected by O. L. Eynora and others

Primary reference: V. E. Ruzhencev and M. F. Bogoslovskaya. 1978. Namyurskii etap v evolyutsii ammonoidyey - Namurian stage, evolution of ammonoids. Truydi paleontologicheskovo instituta 167:338 pp. [M. Aberhan/S. Nurnberg/S. Nurnberg] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67772: authorized by Martin Aberhan, entered by Sabine Nürnberg on 08.12.2006