Where: Russian Federation (72.8° N, 108.3° E: paleocoordinates 74.3° N, 87.7° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ramulicosta ammonoid zone, Early/Lower Valanginian (140.2 - 136.4 Ma)
• Ramulicosta subzone
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified shale
Size class: macrofossils
Collected by Bogomolov in 1984
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 189642: authorized by Matthew Clapham, entered by Matthew Clapham on 04.11.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Euryptychites (Euryptychites) sp., "Siberites cf. rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus
Euryptychites (Euryptychites) sp. Pavlow 1914 ammonite
"Siberites cf. rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus Bogoslowsky 1902 ammonite | |
Bivalvia | |
Mclearnia sp. Crickmay 1930 scallop | |
Oxytoma sp. Meek and Hayden 1865 scallop | |
Buchia sp. Rouillier 1845 scallop | |
Limatula sp. Wood 1839 file clam | |
Entolium sp. Meek 1865 scallop | |
Astarte sp. Sowerby 1816 clam |