Imosawa River, Locality H-3, Imo District: Roadian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Goniatitida
- Cyclolobidae
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Demarezites sp.
Ruzhencev 1955
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Cephalopoda
- Goniatitida
- Agathiceratidae
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 39.0° North, 141.5° East (view map) |
| Paleocoordinates: | 10.3° North, 138.6° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Roadian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Roadian | ||
| Age range of interval: | 274.4 - 266.9 m.y. ago |
Stratigraphy
| Formation: | Hoso-o | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Middle part of the Hosoo Formation | |||||
Lithology and environment
| Primary lithology: | lithified mudstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 107610 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2011-04-11 08:32:20 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-04-11 08:32:20 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 27856. | M. Ehiro and A. Misaki. 2005. Middle Permian ammonoids from the Kamiyasse-Imo district in the southern Kitakami Massif, northeast Japan. Paleontological Research 9(1):1-14 [M. Clapham/M. Clapham] |