Where: Russian Federation (52.6° N, 143.2° E: paleocoordinates 52.9° N, 141.9° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Okobykayskaya Formation, Late/Upper Miocene (11.6 - 5.3 Ma)
• STRATIGRAPHIC RELATIONS: From the lower Okobykayskaya suite of the "Okobykay" horizon, which lies below the "Pomyrlower Nutov" (Late Miocene) and above the "Dagi" (Middle Miocene) horizons. THICKNESS: Total thickness of unit is 1450 m. AGE: Late Miocene, on the basis of classification into the "Okobykay" horizon. STRATIGRAPHIC POSITION: Composite checklist for lower part of the "formation" in this area.
• formation-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified sandstone and poorly lithified siltstone
Size class: macrofossils
Collection methods: COLLECTOR: Unknown, presumably Polevoy (c. 1909). 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 70532: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Delectopecten peckhami Gabb 1869 scallop | |
"Macoma calcarea" = Macoma (Macoma) calcarea
"Macoma calcarea" = Macoma (Macoma) calcarea Gmelin 1792 tellin clam | |
Liocyma okobikaensis venus clam | |
Propeleda schmidti pointed nut clam
Nuculana (Epacroleda) slodkewitschi pointed nut clam | |
"Megayoldia (Portlandella) nitida" = Yoldia nitida, Yoldia (Yoldia) longissima, Yoldia (Yoldia) chojensis, Yoldia (Yoldia) vengeriana
"Megayoldia (Portlandella) nitida" = Yoldia nitida Brocchi 1814 clam
Yoldia (Yoldia) vengeriana Kristofovich 1959 clam | |
Acila (Truncacila) insignis divaricate nutclam |