Where: Orenburg, Russian Federation (51.1° N, 57.3° E: paleocoordinates 15.2° N, 37.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pendleian (330.9 - 327.0 Ma)

• Lower Namurian Nm1a2 (basal Serpukhovian according to Nikolaeva, 2013)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Reposited in the PIN

Primary reference: V. E. Ruzhentsev and M. F. Bogoslovskaya. 1971. Namurskiy etap v evolyutsii ammonoidey. Rannenamyurskie ammonoidei. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 133:1-382 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166941: authorized by Matthew Clapham, entered by Matthew Clapham on 04.03.2015

Creative Commons license: CC BY (attribution)