Where: Kazakhstan (50.2° N, 57.8° E: paleocoordinates 20.7° N, 45.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Asselian (298.9 - 295.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone and lithified conglomerate

Size class: macrofossils

Primary reference: M. F. Bogoslovskaya, T.B. Leonova, and A.A. Shkolin. 1995. The Carboniferous-Permian boundary and ammonoids from the Aidaralash section, southern Urals. Journal of Paleontology 69(2):288-301 [M. Clapham/M. Clapham]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 81364: authorized by Matthew Clapham, entered by Matthew Clapham on 20.06.2008

Creative Commons license: CC BY (attribution)