Where: Krasnoyar, Russian Federation (68.9° N, 88.7° E: paleocoordinates 16.6° S, 5.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Onchonotellus tchecurensis trilobite zone, 1 Member (Chopko Formation), Guzhangian (500.5 - 497.0 Ma)

• sample Ch-1-I-4 of unit Ch-1, Member 1: units Ch-1 - Ch-6; Onchonotellus tchecurensis zone correlates with the uppermost Guzhangian Glyptagnostus stolidotus zone

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified, calcareous breccia and lithified, calcareous conglomerate

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 132491: authorized by Wolfgang Kiessling, entered by Uta Merkel on 20.08.2012

Creative Commons license: CC BY (attribution)