Where: Russian Federation (64.2° N, 130.3° E: paleocoordinates 71.0° N, 31.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hedenstroemia hedenstroemi ammonoid zone, Smithian (251.3 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Primary reference: A. S. Dagis, A. A. Dagis, and S. P. Ermakova. 1996. Triasovaya Fauna Severo-Vostoka Azii 1-232 [M. Clapham/M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107105: authorized by Matthew Clapham, entered by Matthew Clapham on 01.04.2011

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