ammonites
Aktasty River, eastern limestone ridge, Aktastinian, Aktyubinsk Region (Permian of Kazakstan)

Where: Kazakstan (50.4° N, 57.6° E: paleocoordinates 24.2° N, 50.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Artinskian (290.1 - 279.5 Ma)

• Lower part of the Aktastinian

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified limestone

Size class: macrofossils

Collected by V.E. Ruzhentsev, I.V. Khvorova

Primary reference: V. E. Ruzhentsev and V. N. Shimanskiy. 1954. Nizhnepermskie Svernutye i Sognutye Nautiloidei Yuzhnogo Urala [Lower Permian coiled and bent nautiloids of the southern Urals]. Trudy Paleontologicheskogo Instituta 50:1-150 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116788: authorized by Matthew Clapham, entered by Matthew Clapham on 12.09.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)