Where: Russian Federation (60.3° N, 149.3° E: paleocoordinates 80.2° N, 15.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Arctoptychites omolojensis ammonoid zone, Fassanian (242.0 - 235.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; nodular, gray, sandy mudstone

Size class: macrofossils

Primary reference: Y.u. M. Bychkov. 1977. [Sections of the Trias from the upper River Kolym and northern Priochotya]. [Transactions of the Institute of Geology and Geophysics, Siberian Branch of the Academy of Sciences of the USSR] 344:51-82 [A. Dunhill/B. Allen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 214885: authorized by Alex Dunhill, entered by Bethany Allen on 19.10.2020

Creative Commons license: CC BY (attribution)