Ryugase Group
| Ryugase Group Stratigraphic range: Late Santonian- Early Campanian ~85–72 Ma | |
|---|---|
| Type | Geological formation |
| Overlies | Yezo Group |
| Lithology | |
| Primary | Mudstone |
| Location | |
| Coordinates | 47°12′N 142°30′E / 47.2°N 142.5°ECoordinates: 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 |
 |
| Extent | Sakhalin Island |
The Ryugase Group is a geological formation on Sakhalin Island in far eastern Russia whose strata date back to the Late Cretaceous.[1] Dinosaur remains are among the fossils that have been recovered from the formation.[2]
Vertebrate paleofauna
- Nipponosaurus sachalinensis - "Partial skull and associated postcrania, juvenile."[3]
See also
References
- ↑ Kawakami Colliery, Sakhalin at Fossilworks.org
- ↑ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 593-600. ISBN 0-520-24209-2.
- ↑ "Table 20.1," in Weishampel, et al. (2004). Page 442.
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