Where: Russian Federation (52.3° N, 56.8° E: paleocoordinates 17.3° N, 38.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Alportian (318.1 - 314.6 Ma)

• Nm2a2 (corresponds to Alportian); Upper Namurian

• group of beds-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified limestone

Size class: macrofossils

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 67760: authorized by Martin Aberhan, entered by Sabine Nürnberg on 08.12.2006