The Ryugase Group is a geological

formation Formation may refer to: Linguistics * Back-formation, the process of creating a new lexeme by removing or affixes * Word formation, the creation of a new word by adding affixes Mathematics and science * Cave formation or speleothem, a secondar ...

Sakhalin Island Sakhalin ( rus, Сахали́н, r=Sakhalín, p=səxɐˈlʲin; ja, 樺太 ''Karafuto''; zh, c=, p=Kùyèdǎo, s=库页岛, t=庫頁島; Manchu: ᠰᠠᡥᠠᠯᡳᠶᠠᠨ, ''Sahaliyan''; Orok: Бугата на̄, ''Bugata nā''; Nivkh: ...

in far eastern Russia whose strata date back to the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the younger of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''creta'', the ...

.Kawakami Colliery, Sakhalin
at

Fossilworks Fossilworks is a portal which provides query, download, and analysis tools to facilitate access to the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals ...

.org

Vertebrate paleofauna

* '' Nipponosaurus sachalinensis'' - "Partial skull and associated postcrania, juvenile.""Table 20.1," in Weishampel, et al. (2004). Page 442. Probably actually from the

Yezo Group The Yezo Group is a stratigraphic group in Hokkaido, Japan and Sakhalin, Russia which is primarily Late Cretaceous in age (Aptian to Earliest Paleocene). It is exposed as roughly north–south trending belt extending 1,500 kilometres through centr ...

References

Bibliography

* Geologic groups of Asia Geologic formations of Russia Upper Cretaceous Series of Asia Cretaceous Russia Campanian Stage Santonian Stage Mudstone formations Shallow marine deposits Paleontology in Russia Geography of Sakhalin Oblast {{SakhalinOblast-geo-stub

Vertebrate paleofauna

See also

References

Bibliography