Where: Russian Federation (50.8° N, 142.1° E: paleocoordinates 52.1° N, 139.6° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Nevel'skaya Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)
• STRATIGRAPHIC RELATIONS: From Nevel'skaya suite of the "Nevelisk" horizon, which lies between the "Kholmsk" (Late Oligocene) and "Uglegor" (Middle Miocene) horizons. THICKNESS: Total thickness of lower unit is 1000 m. AGE: Late Oligocene, on the basis of classification into the lower part of the "Nevelisk" horizon. STRATIGRAPHIC POSITION: Composite checklist for this part of the formation in this area.
• formation-level stratigraphic resolution
Environment/lithology: coastal; lithified, silty, sandy tuff
Size class: macrofossils
Collection methods: COLLECTOR: Unknown, presumably Uwatoko (c. 1937). REPOSITORY: Unknown repository.
Primary reference: A. I. Kafanov and K. Ogasawara. 2003. Neogene and Paleogene Molluscan (Bivalvia) Cenozones of Sakhalin and Kurile Islands. Science Reports, Institute of Geoscience, University of Tsukuba 24:45-79 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 70527: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Acila (Acila) kholmskensis Krishtofovich 1964 divaricate nutclam | |
Nuculana praerobai, "Nuculana (Crassoleda) crassatelloides" = Crassoleda crassatelloides
"Nuculana (Crassoleda) crassatelloides" = Crassoleda crassatelloides Lautenschlager 1957 pointed nut clam | |
Malletia longa clam
Malletia kitaensis clam | |
Cyclocardia tokunagai Yokoyama 1924 clam | |
Panopea cf. ramonensis Clark 1925 clam | |
Diplodonta confusa Nagao 1928 clam |