Chopko River, bed Ch-28-IV-3 (Cambrian of Russian Federation)

Where: Krasnoyar, Russian Federation (68.9° N, 88.7° E)

• Paleocoordinates: 6.3° S, 35.4° W (Wright 2013)

• coordinate estimated from map

• small collection-level geographic resolution

When: Ketyna ketiensis-Monosulcatina laeve trilobite zone, 2 Member (Tukalanda Formation), Niuchehean (489.5 - 485.4 Ma)

• Cambrian stage 10

• bed-level stratigraphic resolution

Environment/lithology: perireef or subreef; lithified limestone

• gray algal limestones with small bioherms

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 132599: authorized by Wolfgang Kiessling, entered by Uta Merkel on 22.08.2012

Creative Commons license: CC0 (CC0)

Taxonomic list

Trilobita
 Ptychopariida - Lonchocephalidae
Monosulcatina laeve Rozova 1963 trilobite
 Olenida - Eulomidae
Ketyna glabra Rozova 1963 trilobite