Ashizawa Formation

The Ashizawa Formation is a Coniacian geologic formation in northeastern Honshu, Japan. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[1] A jawbone belonging to a therian mammal has also been discovered from this unit.[2]

Ashizawa Formation
Stratigraphic range: Coniacian
TypeGeological formation
Unit ofFutaba Group
Sub-unitsAsamigawa Member, Obisagawa Member
UnderliesKasamatsu Formation
OverliesEarly Cretaceous Granite, Permian shale and sandstone
Location
Regionnorthern Honshu
Country Japan

Palaeofauna

See also

Footnotes

  1. Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
  2. Kusuhashi, N., Suzuki, T., Terui, K., Sato, A., and Amiot, R. (2016) A Late Cretaceous mammalian dentary from the Ashizawa Formation (Futaba Group), Fukushima, northeastern Japan. Island Arc, 25: 403–409. doi: 10.1111/iar.12133.

References

  • Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.

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