Where: Russian Federation (70.6° N, 97.3° E: paleocoordinates 70.6° N, 81.5° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ramulicosta ammonoid zone, Early/Lower Valanginian (140.2 - 136.4 Ma)
• Ramulicosta subzone
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified sandstone
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 189655: authorized by Matthew Clapham, entered by Matthew Clapham on 04.11.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Neocraspedites (Sabydites) menjaiteformis" = Tollia (Neocraspedites), "Temnoptychites sp." = Nikitinoceras, "Siberites ramulicosta" = Polyptychites (Polyptychites) ramulicosta, "Siberites rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus
"Neocraspedites (Sabydites) menjaiteformis" = Tollia (Neocraspedites) ammonite
"Temnoptychites sp." = Nikitinoceras Sokolov 1913 ammonite
"Siberites ramulicosta" = Polyptychites (Polyptychites) ramulicosta Pavlow 1892 ammonite
"Siberites rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus Bogoslowsky 1902 ammonite |