Where: Kazakhstan (43.5° N, 70.0° E: paleocoordinates 0.7° S, 100.8° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Peronopsis ultimus trilobite zone, Amgan (510.2 - 504.5 Ma)

• sample 1314-1 from unit IV (0-10 m) of the Kyrshabakty River section

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, argillaceous limestone

Size class: mesofossils

Preservation: cast

Primary reference: S. N. Koneva. 1990. New Middle Cambrian Acrotretids (Brachiopods) from the Lesser Karatau Range. Paleontological Journal 24(3):45-55 [M. Patzkowsky/P. Borkow/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 9971: authorized by Mark Patzkowsky, entered by Phil Borkow on 05.02.2001, edited by Uta Merkel and Marcus Domansky

Creative Commons license: CC BY (attribution)