Futaba Group
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| Futaba Group | |
|---|---|
| Stratigraphic range: | |
| 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
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Footnotes
[edit | edit source]References
[edit | edit source]- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
