Where: Russian Federation (54.6° N, 136.9° E: paleocoordinates 70.2° N, 154.4° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Pliensbachian to Pliensbachian (189.6 - 182.0 Ma)

Environment/lithology: marine; fine-grained, medium, gray, muddy sandstone

Size class: macrofossils

Primary reference: I. I. Sey and A. D. Kalacheva. 1980. Biostratigraphy of the Lower and Middle Jurassic deposits of the Far East. "Nedra" Publisher, Leningrad 187 [J. Pálfy/M. Bosnakoff/M. Bosnakoff] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 129774: authorized by József Pálfy, entered by Mariann Bosnakoff on 27.06.2012