Mandano: Middle Pleistocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Sirenia
- Dugongidae
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Hydrodamalis gigas
(Zimmermann 1780)
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Mammalia
- Carnivora
- Otariidae
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Eumetopias sp.
Gill 1866
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Mandano Fossil Research Group 1987 | 1 specimen | |||||
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Mammalia
- Carnivora
- Odobenidae
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Odobenus mandanoensis n. sp.
Tomida 1989
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Tomida 1989 | 1 specimen | |||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Chiba |
| Coordinates: | 35.3° North, 140.1° East (view map) | ||
| Paleocoordinates: | 35.3° North, 140.2° East | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Chibanian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Middle Pleistocene | ||
| Age range of interval: | 0.77400 - 0.12900 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Lithology description: sand and gravel | |
| Environment: | marginal marine indet. |
Taphonomy
| Modes of preservation: | original phosphate |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Also known as: | Ichihara | ||
| Database number: | 65240 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2006-09-20 11:12:08 | Last modified: | 2019-10-01 21:42:13 |
| Access level: | the public | Released: | 2006-09-20 11:12:08 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 18822. | H. Furusawa and N. Kohno. 1994. Steller's sea-cow (Sirenia: Hydrodamalis gigas) from the Middle Pleistocene Mandano Formation of the Boso Peninsula, Central Japan. Fossils 56:26-32 [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] | |
| 64080 | Y. Kawamura. 1991. Quaternary mammalian faunas in the Japanese Islands. The Quaternary Research 30(2):213-220 [M. Uhen/M. Uhen/M. Uhen] | |
| 34713 | Mandano Fossil Research Group. 1987. On a fossil of Otariidae (Mammalia) from the middle Pleistocene Mandano Formation of Ichihara City, Chibu Prefecture, Japan. Chikyu Kagaku 41(6):327-330 [M. Uhen/M. Uhen] | |
| 25206 | Y. Tomida. 1989. A new walrus (Carnivora, Odobenidae) from the middle Pleistocene of the Boso Peninsula, Japan, and its implication on odobenid paleobiology. Bulletin of the National Science Museum, Series C (Geology & Paleontology) 15(3):109-119 [M. Uhen/M. Uhen] |