ammonites
Dolnapa Section Bed 20 (Triassic of Kazakstan)

Where: Kazakstan (44.4° N, 51.4° E: paleocoordinates 26.2° N, 49.0° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Karadzhatykskaya Formation, Olenekian (251.3 - 247.2 Ma)

• Eumorphotis Beds

Environment/lithology: marine; gray, green, silty mudstone and fine-grained, gray sandstone

• Grey, fine-grained sandstone with interlayers of mud-

•stone and rare lenses of limestone (about 75 m).

Primary reference: Y. D. Zakharov and A. M. Popov. 2007. Examples of Late Olenekian invertebrate successions: Paper 1. Western Tethys (Dolnapa, Mangyshlak). Albertiana 35:46-51 [A. McGowan/A. McGowan] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 72339: authorized by Alistair McGowan, entered by Alistair McGowan on 01.06.2007