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 rotelliformis ammonoid zone, Illyrian (247.2 - 242.0 Ma)
• 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 151172: authorized by Matthew Clapham, entered by Matthew Clapham on 23.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Gymnotoceras inflatum, "Gymnotoceras rotelliforme" = Gymnotoceras rotelliformis, Gymnotoceras tasaryense
Gymnotoceras inflatum Konstantinov 1991 ceratite
"Gymnotoceras rotelliforme" = Gymnotoceras rotelliformis Meek 1877 ceratite
Gymnotoceras tasaryense Konstantinov 1991 ceratite |