Where: Russian Federation (71.8° N, 127.8° E: paleocoordinates 65.7° N, 13.3° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Gymnotoceras rotelliforme ammonoid zone, Illyrian (247.2 - 242.0 Ma)
• Olenekense subzone
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified siliciclastic sediments
Size class: macrofossils
Collection methods: Repository: TsSGM (Central Siberian Geological Museum in the Institute of Geology, Geography and Mineralogy of the Siberian Branch, Russian Academy of Sciences, Novosibirsk), same as IGiG (Institute for Geology and Geophysics, Novosibirsk)
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 151169: authorized by Matthew Clapham, entered by Matthew Clapham on 23.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
? Arctogymnites sp. Popov 1962 ceratite
Gymnotoceras blakei Gabb 1864 ceratite
Gymnotoceras olenekense Dagys and Konstantinov 1986 ceratite |