Homare 2 District: Tortonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cetacea
- Phocoenidae
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Phocoenidae indet.
(Gray 1825)
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Murakami et al. 2015 | 1 specimen | |||||
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Pterophocaena nishinoi n. gen., n. sp.
Murakami et al. 2012
|
1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Hokkaido | County: | Nakagawa |
| Coordinates: | 44.8° North, 142.0° East (view map) | ||||
| Paleocoordinates: | 45.2° North, 140.7° East | ||||
| 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: | 11.63000 - 7.24600 m.y. ago |
Stratigraphy
| Formation: | Wakkanai |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | mudstone |
| Includes fossils? | Y |
| Lithology description: siliceous turbidite mudstone; andesitic tuffaceous breccia and tuffaceous sandstone, which contain opaque hornblende, occur in basal sec- tions of the formation | |
| 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: | Teshio River | ||
| Database number: | 133430 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen | Research group: | vertebrate |
| Created: | 2012-09-13 07:04:04 | Last modified: | 2012-09-12 16:04:04 |
| Access level: | the public | Released: | 2012-09-13 07:04:04 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 42985. | M. Murakami, C. Shimada, Y. Hikida and H. Hirano. 2012. A new basal porpoise, Pterophocaena nishinoi (Cetacea, Odontoceti, Delphinoidea), from the Upper Miocene of Japan and its phylogenetic relationships. Journal of Vertebrate Paleontology 32(5):1157-1171 [M. Uhen/M. Uhen] |
Secondary references:
| 64467 | M. Murakami, C. Shimada, Y. Hikida and H. Hirano. 2015. New fossil remains from the Pliocene Koetoi Formation of northern Japan provide insights into growth rates and the vertebral evolution of porpoises. Acta Palaeontologica Polonica 60(1):97-111 [M. Uhen/M. Uhen/M. Uhen] |