Where: Russian Federation (72.9° N, 120.9° E: paleocoordinates 63.5° N, 15.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Gymnotoceras rotelliforme ammonoid zone, Illyrian (247.2 - 242.0 Ma)

• Gymnotoceras olenekense subzone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: Repository: TsSGM (Institute of Geology and Geophysics of the USSR Academy of Sciences in Novosibirsk) (abbreviated IGiG in other papers)

Primary reference: A. G. Konstantinov. 1991. Biostratigrafiya i ammonoidei verkhnego Aniziya severa Sibiri. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 787:1-136 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107205: authorized by Matthew Clapham, entered by Matthew Clapham on 02.04.2011

Creative Commons license: CC BY (attribution)