Ryugase Group

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	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.^[1]

Vertebrate paleofauna

• Nipponosaurus sachalinensis - "Partial skull and associated postcrania, juvenile."^[2] Probably actually from the Yezo Group.

See also

• List of dinosaur-bearing rock formations
• List of fossiliferous stratigraphic units in Russia

References

Bibliography

• Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2

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This page was last edited on 17 December 2021, at 23:32