Where: Russian Federation (75.0° N, 105.0° E: paleocoordinates 75.9° N, 80.0° E)
• small collection-level geographic resolution
When: Chetaites sibiricus zone, Berriasian (145.0 - 139.8 Ma)
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Collection methods: fauna was collected from calcareous sandstone concretions of layers 1 and 2 (fine-grained sandstones) along the Kheta River towpath
Primary reference: V. N. Saks, ed. 1975. The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm. 1-319 [M. Patzkowsky/K. Layou/P. Wagner]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 2457: authorized by Mark Patzkowsky, entered by Karen Layou on 05.07.1999, edited by Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Musculus sp. Roding 1798 mussel | |
Inoceramus sp. Sowerby 1814 clam | |
| |
Buchia volgensis Lahusen 1888 scallop | |
Oxytoma sp. Meek and Hayden 1865 scallop | |
Pseudolimea arctica file clam | |
| |
Entolium nummulare scallop | |
Cucullaea sp. Lamarck 1801 clam | |
Parallelodon sp. Meek and Worthen 1866 clam | |
Neocrassina vai clam
Astarte veneris clam | |
Protocardia sp. Beyrich 1845 cockle | |
Cephalopoda | |
| |
Praetollia sp., ex gr. Subcraspedites suprasbudites, ex gr. Subcraspedites anglicus, "Paracraspedites stenomphaloides" = Subcraspedites (Paracraspedites), Surites cf. tzikwinianus, Surites aff. tzikwinianus
Praetollia sp. ammonite
ex gr. Subcraspedites suprasbudites ammonite originally entered as "Subcraspedites ex gr. suprasbudites"
"Paracraspedites stenomphaloides" = Subcraspedites (Paracraspedites) ammonite | |
? Argentiniceras sp. n. sp.
| |
Chetaites sibiricus Shul'gina 1962 ammonite |