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Ryugase Group

Coordinates: 47°12′N 142°30′E / 47.2°N 142.5°E / 47.2; 142.5
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Ryugase Group
Stratigraphic range: Late Santonian-
Early Campanian
~85–72 Ma
TypeGeological formation
OverliesYezo Group
Lithology
PrimaryMudstone
Location
Coordinates47°12′N 142°30′E / 47.2°N 142.5°E / 47.2; 142.5
Approximate paleocoordinates51°54′N 130°00′E / 51.9°N 130.0°E / 51.9; 130.0
RegionSakhalin Oblast
Country Russia
ExtentSakhalin Island
Ryugase Group is located in Russia
Ryugase Group
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.[1]

Vertebrate paleofauna

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See also

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References

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  1. ^ Kawakami Colliery, Sakhalin at Fossilworks.org
  2. ^ "Table 20.1," in Weishampel, et al. (2004). Page 442.

Bibliography

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  • 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