Where: Russian Federation (70.6° N, 97.3° E: paleocoordinates 70.2° N, 81.2° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Bojarkensis ammonoid zone, Early/Lower Hauterivian (136.4 - 130.0 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified shale
Size class: macrofossils
Collected by Bogomolov in 1981
Primary reference: Y. I. Bogomolov. 1989. Poliptikhity (Ammonity) i biostratigrafiya boreal'nogo Valanzhina. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 696:1-199 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 189669: authorized by Matthew Clapham, entered by Matthew Clapham on 04.11.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Homolsomites sp. Crickmay 1930 ammonite |