Where: Russian Federation (66.7° N, 127.6° E: paleocoordinates 62.2° N, 38.7° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Khaldzhin Formation, Kungurian (279.3 - 272.3 Ma)
• Bed 32B, 4.5 m above its base. Lower Permian, Kungurian, Tumarian Regional Stage, upper part of the Khaldzhin Formation.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified siltstone
Size class: macrofossils
Preservation: mold/impression
Collection methods: Repository: Museum of the Shilo Northeast Interdisciplinary Scientific Research Institute, Far East Branch, Russian Academy of Sciences, (SVKNII)
Primary reference: A. S. Biakov and R. V. Kutygin. 2022. A new representative of the genus Aphanaia Koninck from the Lower Permian of the Orulgan Ridge (northeast Russia). Paleontological Journal 56:369-373 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 139195: authorized by Carrie Schweitzer, entered by Evaline Johnson on 09.02.2013, edited by Mark Uhen, Rosa Valdez and Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Edmondia sp. de Koninck 1841 clam | |
Praekolymia cf. kaschirtzevi Kuznetsov and Biakov 2014 clam | |
Aphanaia sobopolensis Biakov 2022 clam
Costatoaphanaia cf. formosa Astaf'yeva 1988 clam |