Where: Russian Federation (47.7° N, 142.0° E: paleocoordinates 48.5° N, 140.0° E)
• coordinate stated in text
• small collection-level geographic resolution
When: Chekhov Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
Environment/lithology: marine; tuffaceous, gray sandstone
Size class: macrofossils
Primary reference: T. P. Malyshkina, M. V. Nazarkin, and A. V. Solovyow. 2024. An oldest record of the shark Cosmopolitodus planus (Lamnidae) from the Lower Miocene of the Sakhalin, Russia. Journal of Ichthyology 64(1):72-79 [M. Uhen/M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 234677: authorized by Mark Uhen, entered by Mark Uhen on 02.05.2024
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Nuculana sp. Link 1807 pointed nut clam | |
Macoma sp. Leach 1819 tellin clam | |
Chondrichthyes | |
"Cosmopolitodus planus" = Isurus planus
"Cosmopolitodus planus" = Isurus planus Agassiz 1856 mackerel shark | |
unclassified | |
Plantae indet. Haeckel 1866 |