Where: Russian Federation (71.7° N, 128.0° E: paleocoordinates 65.8° N, 13.3° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Illyrian (247.2 - 242.0 Ma)
• Most likely from the Frechites nevadanus zone (dzeginense or nevadanus subzones) but could be from the olenekense subzone of the Gymnotoceras rotelliforme zone.
• 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 151189: authorized by Matthew Clapham, entered by Matthew Clapham on 23.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Arctonautilus egorovi Sobolev 1989 nautiloid | |
Arctogymnites sonini Popov 1961 ceratite |