Takasato: Tortonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Osteichthyes
- Sirenia
- Dugongidae
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| Kobayashi et al. 1995 | ||||||||||
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Osteichthyes
- Carnivora
- Otariidae
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| Sato et al. 2010 | ||||||||||
| "sea lion" | ||||||||||
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Osteichthyes
- Cetacea
- Balaenopteridae
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| Sato et al. 2010 | 1 specimen | |||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Fukushima |
| Coordinates: | 37.6° North, 139.7° East (view map) | ||
| Paleocoordinates: | 37.2° North, 137.9° East (Wright 2013) | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63 - 7.246 m.y. ago |
Stratigraphy
| Formation: | Shiotsubo | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: According to Suzuki et al. (1968) its age is late Miocene, and according to Ogasawara et al. (1983) its age is 8 +/- 2 Ma based on microfossils including foraminifers. | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | body,original phosphate |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 65229 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2006-09-20 08:50:23 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2006-09-20 08:50:23 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 18808. | Aizu Fossil Research Group. 1982. On a fossil Sirenia from the Shotsubo Formation, Takasato, Yama, Fukushima Prefecture, Northeast Japan. Earth Science 36(5):282-284 [M. Uhen/M. Uhen] |
Secondary references:
| 70357 | H. Furusawa. 2005. Evolution of the North Pacific Sirenia (Hydrodamalinae) and their paleoenvironment. Fossils 77:29-33 [M. Uhen/M. Uhen] | |
| 33318 | S. Kobayashi, H. Horikawa, and S. Miyazaki. 1995. A new species of Sirenia (Mammalia: Hydrodamalinae) from the Shiotsubo Formation in Takasato, Aizu, Fukushima Prefecture, Japan. Journal of Vertebrate Paleontology 15(4):815-829 [M. Uhen/M. Uhen] | |
| 33317 | T. Sato, M. Sato, S. Kobayashi and Aizu Fossil Research Group. 2010. A fossil balaenopterid whale from the Upper Miocene Shiotsubo Formation in Takasato, Kitakata City, Fukushima Prefecture, northeast Japan. Chikyu Kagaku 64:23-28 [M. Uhen/M. Uhen] |