Ay River, Section 1768 (Permian of Russian Federation)

Where: Bashkortostan, Russian Federation (55.3° N, 58.5° E: paleocoordinates 27.3° N, 45.6° E)

• coordinate based on nearby landmark

When: Artinskian (290.1 - 279.3 Ma)

• Sarga regional stage

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified limestone and lithified marl

Size class: macrofossils

Primary reference: A. Ivanov. 2005. Early Permian chondrichthyans of the middle and south Urals. Revista Brasileira de Paleontologia 8(2):127-138 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90295: authorized by Matthew Clapham, entered by Matthew Clapham on 15.07.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

Chondrichthyes
 Ctenacanthiformes - Heslerodidae
Heslerodus sp. Ginter 2002 elasmobranch