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

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Pseudosageceras ammonoid zone, Tyur-Upa Formation, Spathian (251.3 - 247.2 Ma)

• "limestone-shale member" of Astakhova (1960a,b, 1964)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; limestone and shale

Size class: macrofossils

Primary reference: B. Kummel. 1969. Ammonoids of the late Scythian (Lower Triassic). Bulletin of the Museum of Comparative Zoology 137:311-702 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 213179: authorized by Alex Dunhill, entered by Bethany Allen on 27.08.2020

Creative Commons license: CC BY (attribution)