Earth:Futaba Group
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Revision as of 00:53, 20 April 2022 by imported>LinuxGuru (fixing)
Short description: Geologic formation in Japan
| Futaba Group Stratigraphic range: Coniacian–Santonian | |
|---|---|
| Type | Geological group |
| Sub-units | Ashizawa Formation, Kasamatsu Formation, Tamayama Formation |
| Underlies | Unconformity with Paleogene Shiramizu Group |
| Overlies | Early Cretaceous Granite, Permian shale and sandstone |
| Thickness | Over 300 metres |
| Lithology | |
| Primary | Sandstone, siltstone, conglomerate |
| Location | |
| Region | northern Honshu |
| Country | Japan |
The Futaba Group is a Late Cretaceous geologic group in 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] It consists of both fluvial and shallow marine sediments.[2] The plesiosaur Futabasaurus was found in this unit (specifically the Tamayama Formation).
See also
- List of dinosaur-bearing rock formations
- List of stratigraphic units with indeterminate dinosaur fossils
Footnotes
- ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ↑ Ando, Hisao; Seishi, Masao; Oshima, Mitsuharu; Matsumaru, Tetsuya (1995). "Fluvial-Shallow Marine Depositional Systems of the Futaba Group (Upper Cretaceous). Depositional facies and sequences.". Journal of Geography (Chigaku Zasshi) 104 (2): 284–303. doi:10.5026/jgeography.104.284. ISSN 0022-135X. http://joi.jlc.jst.go.jp/JST.Journalarchive/jgeography1889/104.284?from=CrossRef.
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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