Chopko River, bed Ch-15a-I-1 (Cambrian of Russian Federation)

Where: Krasnoyar, Russian Federation (68.9° N, 88.7° E: paleocoordinates 14.7° S, 8.5° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Agnostotes clavatus-Irvingella perfecta trilobite zone, 4 Member (Chopko Formation), Taoyuanian (498.5 - 485.4 Ma)

• Cambrian stage 9

• bed-level stratigraphic resolution

Environment/lithology: slope; lithified breccia

• 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 132542: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.08.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Artiopoda
 Agnostida - Diplagnostidae
Agnostotes sp., "Agnostotes (Pseudoglyptagnostus) clavatus" = Agnostotes orientalis, Pseudagnostus intermedius
Agnostotes sp. Opik 1963
"Agnostotes (Pseudoglyptagnostus) clavatus" = Agnostotes orientalis Kobayashi 1935