Choshi: Early/Lower Pliocene - Late/Upper Pliocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Cetacea
- Ziphiidae
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Ziphiidae indet.
Gray 1850
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Oishi and Hasegawa 1995 | 1 specimen | ||||||||
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Mammalia
- Cetacea
- Delphinidae
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Delphinidae indet.
Gray 1821
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Oishi and Hasegawa 1995 | 1 specimen | ||||||||
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Mammalia
- Cetacea
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Burtinopsis sp.
Van Beneden 1872
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Oishi and Hasegawa 1995 | |||||||||
| nomen dubium belonging to Mysticeti | ||||||||||
| "Group III bullae" | ||||||||||
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Mammalia
- Cetacea
- Balaenidae
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Balaenula sp.
Van Beneden 1872
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Oishi and Hasegawa 1995 | |||||||||
| "Group VII bullae" | ||||||||||
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Balaena sp.
Linnaeus 1758
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Oishi and Hasegawa 1995 | |||||||||
| "Group VI bullae" | ||||||||||
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Mammalia
- Cetacea
- Balaenopteridae
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Balaenopteridae indet.
Gray 1864
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Oishi and Hasegawa 1995 | |||||||||
| "Group II bullae" | ||||||||||
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"Megaptera" sp.
Gray 1846
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Oishi and Hasegawa 1995 | |||||||||
| "Group IV bullae" | ||||||||||
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Balaenoptera sp.
Lacépède 1804
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Oishi and Hasegawa 1995 | |||||||||
| "Group V bullae" | ||||||||||
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Mammalia
- Cetacea
- Cetotheriidae
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Herpetocetus sp.
Van Beneden 1872
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5 specimens | |||||||||
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= cf. Herpetocetus sp.
Van Beneden 1872
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Tanaka et al. 2018 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Chiba |
| Coordinates: | 35.8° North, 140.8° East (view map) | ||
| Paleocoordinates: | 36.5° North, 140.1° East | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Neogene | Epoch: | Pliocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Early/Lower Pliocene - Late/Upper Pliocene | ||
| Age range of interval: | 5.33300 - 2.58000 m.y. ago |
Stratigraphy
| Formation: | Na-arai |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,original phosphate |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 56942 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2005-11-29 09:42:16 | Last modified: | 2011-05-20 15:54:57 |
| Access level: | the public | Released: | 2005-11-29 09:42:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 15356. | T. Kimura and Y. Hasegawa. 2004. An outline of the Miocene cetotheres of Japan. Bulletin of the Gunma Museum of Natural History 8:79-88 [M. Uhen/M. Uhen] |
Secondary references:
| 33319 | T. Kimura. 2009. Review of the fossil balaenids from Japan with a re-description of Eubalaena shinshuensis (Mammalia, Cetacea, Mysticeti). Quaderni del Museo di Storia Naturale di Livorno 22:3-21 [M. Uhen/M. Uhen] | |
| 12148 | M. Oishi and Y. Hasegawa. 1995. A list of fossil cetaceans in Japan. The Island Arc 3:493-505 [M. Uhen/M. Uhen/M. Uhen] | |
| 15571 | M. Oishi and Y. Hasegawa. 1995. Diversity of Pliocene mysticetes from eastern Japan. The Island Arc 3:436-452 [M. Uhen/M. Uhen] | |
| 48277 | Y. Tanaka, H. Furusawa, and L. G. Barnes. 2018. Fossil herpetocetine baleen whales (Cetacea, Mysticeti, Cetotheriidae) from the lower Pliocene Horokaoshirarika Formation at Numata, Hokkaido, northern Japan. Paleontological Research 22(4):295-306 [M. Uhen/L. Petruny/M. Uhen] |