Where: Bashkortostan, Russian Federation (53.6° N, 56.1° E: paleocoordinates 22.1° N, 42.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Shakhtau Reef Formation, Asselian (298.9 - 295.5 Ma)

• The preliminary estimate of the geological age based on geological exploration profiles is Late Asselian

• group of beds-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified reef rocks

Size class: macrofossils

Preservation: mold/impression

Reposited in the PIN

• PIN collection 5538 (gastropods)

Primary reference: A. V. Mazaev. 2019. A new genus Perakella gen. nov. (Gastropoda) from the Lower Permian reef limestone of Shakh-Tau. Paleontological Journal 53:341-345 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 204134: authorized by Matthew Clapham, entered by Matthew Clapham on 31.08.2019

Creative Commons license: CC BY (attribution)