Chopko River, bed Ch-1-I-7 (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-1-I-7 of unit Ch-1, Member 1: units Ch-1 - Ch-6

• bed-level stratigraphic resolution

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

• limestone fragments in calcareous breccia-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 132493: authorized by Wolfgang Kiessling, entered by Uta Merkel on 20.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Artiopoda
 Agnostida -
 Agnostida - Diplagnostidae
Trilobita
 Olenida - Aphelaspidae
Nganasanella cf. interminata Rozova 1964 trilobite