The Ryugase Group is a geological formation on Sakhalin Island in far eastern Russia whose strata date back to the Late Cretaceous.[1]
| Ryugase Group | |
|---|---|
| Stratigraphic range: Late Santonian- Early Campanian ~ | |
| Type | Geological formation |
| Overlies | Yezo Group |
| Lithology | |
| Primary | Mudstone |
| Location | |
| Coordinates | 47°12′N 142°30′E / 47.2°N 142.5°E |
| Approximate paleocoordinates | 51°54′N 130°00′E / 51.9°N 130.0°E |
| Region | Sakhalin Oblast |
| Country | Russia |
| Extent | Sakhalin Island |
  Ryugase Group (Russia) | |
Vertebrate paleofauna
edit- Nipponosaurus sachalinensis - "Partial skull and associated postcrania, juvenile."[2] Probably actually from the Yezo Group.
See also
editReferences
edit- ↑ Kawakami Colliery, Sakhalin at Fossilworks.org
- ↑ "Table 20.1," in Weishampel, et al. (2004). Page 442.
Bibliography
edit- 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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