Hikoshima: Chattian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cetacea
- Cetacea
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Zeuglodon sp.
Owen 1839
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Hasegawa and Ota 1979 | |||||||||
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= Cetacea indet.
Brisson 1762
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Uhen 2500 | |||||||||
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Reptilia
- Suliformes
- Plotopteridae
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Plotopteridae indet.
Howard 1969
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Hasegawa and Ota 1979 | 1 specimen | ||||||||
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Chondrichthyes
- Lamniformes
- Odontaspididae
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Odontaspis sp.
Agassiz 1838
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Hasegawa and Ota 1979 | |||||||||
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Chondrichthyes
- Lamniformes
- Otodontidae
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Carcharodon megalodon
(Agassiz 1835)
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Hasegawa and Ota 1979 | |||||||||
| recombined as Otodus megalodon | ||||||||||
| Based on age, most likely another Carcharocles species | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Yamaguchi |
| Coordinates: | 34.0° North, 131.0° East (view map) | ||
| Paleocoordinates: | 39.2° North, 127.4° East | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Chattian | ||
| Age range of interval: | 27.82000 - 23.03000 m.y. ago |
Stratigraphy
| Formation: | Orio | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Orio Sandstone Bed | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Also known as: | Shimonoseki | ||
| Database number: | 127382 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2012-05-11 03:22:58 | Last modified: | 2012-05-16 09:37:54 |
| Access level: | the public | Released: | 2012-05-11 03:22:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 29340. | S. L. Olson and Y. Hasegawa. 1996. A new genus and two new species of gigantic Plotopteridae from Japan (Aves: Pelecaniformes). Journal of Vertebrate Paleontology 16(4):742-751 [J. Alroy/J. Alroy] |
Secondary references:
| 41464 | Y. Hasegawa and M. Ota. 1979. Hikoshima specimens from Orio Sandstone Bed, Shimonoseki City, Yamaguchi Prefecture. Bulletin of the Kitakyushu Museum of Natural History 1:41-60 [M. Uhen/M. Uhen] |