Ryugase Group | |
---|---|
Stratigraphic range: Late Santonian- Early Campanian ~85–72 Ma PreꞒ Ꞓ O S D C P T J K Pg N | |
Type | Geological formation |
Overlies | Yezo Group |
Lithology | |
Primary | Mudstone |
Location | |
Coordinates | 47°12′N 142°30′E / 47.2°N 142.5°E / 47.2; 142.5 |
Approximate paleocoordinates | 51°54′N 130°00′E / 51.9°N 130.0°E / 51.9; 130.0 |
Region | Sakhalin Oblast |
Country | Russia |
Extent | Sakhalin Island |
Ryugase Group (Russia) |
The Ryugase Group is a geological formation on Sakhalin Island in far eastern Russia whose strata date back to the Late Cretaceous.
Vertebrate paleofauna
- Nipponosaurus sachalinensis - "Partial skull and associated postcrania, juvenile." Probably actually from the Yezo Group.
See also
References
- Kawakami Colliery, Sakhalin at Fossilworks.org
- "Table 20.1," in Weishampel, et al. (2004). Page 442.
Bibliography
- Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21
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