Kaikuma River: Tortonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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| 1 specimen | ||||||||||
| HMG-382 | ||||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Adipicola sp.
Dautzenberg 1927
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| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Hokkaido |
| Coordinates: | 42.8° North, 142.0° East (view map) | ||
| Paleocoordinates: | 42.4° North, 140.0° East (Wright 2013) | ||
| Basis of coordinate: | estimated from map |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Tortonian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Tortonian | ||
| Age range of interval: | 11.63 - 7.246 m.y. ago |
Stratigraphy
| Formation: | Karumai | ||||
| Stratigraphy comments: The age of the Karumai Formation is assigned to the late middle Mio- cene to the early late Miocene (12.5–9.7 Ma; Motoyama and Kawamura, 2009). |
Lithology and environment
| Primary lithology: | "shale" |
| Includes fossils? | Y |
| Lithology description: mainly of hard shale frequently intercalated by turbiditic mudstone and sandstone beds | |
| Environment: | basinal (siliceous) |
| Geology comments: abyssal fan; whale fall | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 193941 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2018-06-07 13:42:15 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2018-06-07 13:42:15 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 39867. | R. G. Jenkins, A. Kaim, K. Amano, K. Sakurai, and K. Matsubara. 2018. A new Miocene whale-fall community dominated by the bathymodiolin mussel Adipicola from the Hobetsu area, Hokkaido, Japan. Paleontological Research 22(2):105-111 [M. Uhen/M. Shalap/M. Uhen] |