Chopko River, bed Ch-5-I-3 (Cambrian of Russian Federation)

Where: Krasnoyar, Russian Federation (68.9° N, 88.7° E: paleocoordinates 16.9° S, 4.7° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Glyptagnostus reticulatus trilobite zone, 1 Member (Chopko Formation), Paibian (497.0 - 494.0 Ma)

• sample Ch-5-I-3 of unit Ch-5, Member 1: units Ch-1 - Ch-6

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified conglomerate

• flat-pebble calcareous breccia-conglomerate, marl

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: A. I. Varlamov, K. L. Pak, and A. V. Rosova. 2006. The Upper Cambrian of the Chopko River section, Norilsk region, northwestern Siberian Platform: stratigraphy and trilobites. Paleontological Journal 40(Suppl. 1):1-56 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 132499: authorized by Wolfgang Kiessling, entered by Uta Merkel on 20.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Agnostida -
 Ptychopariida - Solenopleuridae
Acrocephalaspis orientalis Lazarenko 1966 trilobite