Verkhnyaya Kayrakla region, Southern Urals, Orenburg (Carboniferous of Russian Federation)

Where: Russian Federation (51.6° N, 57.1° E: paleocoordinates 16.8° N, 38.9° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Kinderscoutian (321.8 - 321.3 Ma)

• Nm2b3 (corresponds to Kinderscoutian); Upper Namurian; ammonoids were derived from the upper part (3 m from the top) of a gray, bedded limestone layer

• bed-level stratigraphic resolution

Environment/lithology: offshore shelf; lithified, gray limestone

Size class: macrofossils

Primary reference: V. E. Ruzhentsev and M. F. Bogoslovskaya. 1978. Namyurskii etap v evolyutsii ammonoidyey - Namurian stage, evolution of ammonoids. Trudyi paleontologicheskovo instituta 167:1-338 [M. Aberhan/S. Nurnberg/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 67725: authorized by Martin Aberhan, entered by Sabine Nürnberg on 07.12.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Focus on ammonoidea.
Cephalopoda
 Goniatitida - Ramositidae
Ramosites magnus Ruzhentsev and Bogoslovskaya 1978 ammonite
 Goniatitida - Girtyoceratidae
Baschkirites planus n. sp. Ruzhentsev and Bogoslovskaya 1978 ammonite
 Goniatitida - Delepinoceratidae
Proshumardites karpinskii Rauser-Chernousova 1928 ammonite
 Goniatitida - Cravenoceratidae
Aenigmatoceras rhipaeum Ruzhentsev and Bogoslovskaya 1978 ammonite
A. rhipaeum rhipaeum
 Goniatitida - Reticuloceratidae
Retites cf. obscurus Ruzhentsev and Bogoslovskaya 1978 ammonite
Alurites postcostatus Ruzhentsev and Bogoslovskaya 1978 ammonite
Phillipsoceras sp. Ruzhencev and Bogoslovskaya 1975 ammonite