Hanawa, Azuma-mura, Yagihawa limestone: Roadian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Schwagerinidae
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Fusulina japonica
Guembel 1874
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Chondrichthyes
- Eugeneodontiformes
- Helicoprionidae
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| see common names | |||||||
Geography
| Country: | Japan | County: | Gunma |
| Coordinates: | 36.5° North, 139.4° East (view map) | ||
| Paleocoordinates: | 8.7° North, 136.0° East (Wright 2013) |
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: | Yagihawa limestone |
Lithology and environment
| Primary lithology: | "limestone" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 133437 | ||
| Authorizer: | M. Clapham | Enterer: | P. Vazquez |
| Modifier: | P. Vazquez | Research group: | vertebrate |
| Created: | 2012-09-13 10:12:32 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2012-09-13 10:12:32 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 42989. | H. Yabe. 1903. On a Fusulina-Limestone with Helicoprion in Japan. The Geological Society of Japan 10:1-13 [M. Clapham/P. Vazquez] |
Secondary references:
| 42990 | M. Goto. 1994. Palaeozoic and early Mesozoic fish faunas of the Japanese Islands. The Island Arc 3(1994):247-254 [M. Clapham/P. Vazquez] |