Where: Kazakhstan (43.5° N, 70.0° E: paleocoordinates 2.8° S, 99.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Ptychagnostus punctuosus trilobite zone, Aktas Formation, Zhanaarykian (503.0 - 500.5 Ma)

• sample 1465-16 from unit V (10-91.5 m) of the Kyrshabakty River section (Ergaliev 2008)

• bed-level stratigraphic resolution

Environment/lithology: basinal (); lithified lime mudstone

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 9964: 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)