Where: Russian Federation (54.1° N, 52.1° E: paleocoordinates 27.5° N, 45.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kazan Formation, Roadian (272.5 - 268.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: T. A. Grunt. 1980. Athrididi Russkoi Platformi. Trudy Paleontologicheskogo Instituta 182 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 99996: authorized by Matthew Clapham, entered by Matthew Clapham on 27.11.2010

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