Yoshinoda: Middle Pleistocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Geoemydidae
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Ocadia nipponica n. sp.
Hirayama et al. 2007
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| CBM-PV 686 (holotype), nearly complete skeleton including skull, lower jaw, much of appendicular skeleton and shell; Unit C1 | ||||||||||
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Mauremys yabei
(Shikama 1949)
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| Unit B | ||||||||||
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Mammalia
- Proboscidea
- Elephantidae
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Palaeoloxodon naumanni
Makiyama 1924
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Mammalia
- Cervidae
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Cervus nippon
Temminck 1838
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Bivalvia
- Unionida
- Unionidae
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Unio sp.
Philipsson 1788
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| Unit B2 | ||||||||||
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Unio douglasiae
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| Unit C1 | ||||||||||
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Anodonta sp.
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| Unit B2 | ||||||||||
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Anodonta woodiana
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| Unit C1 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Chiba |
| Coordinates: | 35.4° North, 140.0° East (view map) | ||
| Paleocoordinates: | 35.4° North, 140.0° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
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
| Geological group: | Shimosa | Formation: | Kiyokawa | ||
| Stratigraphy comments: "A tephra marker bed from the lowermost part of the Kiyokawa Formation, Ky2, is correlated with TB7, another tephra bed from the Oiso district of Kanagawa Prefecture, which is estimated as 225 G24 Ka by the fission track dating method (Nakazato et al.,
2004; Okazaki et al., 2004a)." (Hirayama et al. 2007) | |||||
Lithology and environment
| Primary lithology: | mudstone |
| Secondary lithology: | siltstone |
| Environment: | pond |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | BMNH,MNHN |
| Collection method comments: CBM-PV - Natural History Museum & Institute, Chiba, Japan
NSM - National Science Museum, Tokyo, Japan | |
Metadata
| Database number: | 198611 | ||
| Authorizer: | A. Dunhill | Enterer: | B. Allen |
| Modifier: | B. Allen | ||
| Created: | 2018-12-28 07:49:45 | Last modified: | 2018-12-28 07:55:15 |
| Access level: | the public | Released: | 2018-12-28 07:49:45 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 67639. | R. Hirayama, N. Kaneko, and H. Okazaki. 2007. Ocadia nipponica, a new species of aquatic turtle (Testudines: Testudinoidea: Geoemydidae) from the Middle Pleistocene of Chiba Prefecture, central Japan. Paleontological Research 11(1):1-19 [A. Dunhill/B. Allen] |