Toyoma-cho, Toyoma-gun, Toyoma formation: Wuchiapingian - Changhsingian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Chondrichthyes
- Eugeneodontiformes
- Helicampodontidae
|
|||||||
| see common names | |||||||
Geography
| Country: | Japan | County: | Miyagi-ken |
| Coordinates: | 38.7° North, 141.3° East (view map) | ||
| Paleocoordinates: | 1.6° North, 134.1° East (Wright 2013) |
Time
| Period: | Permian | Epoch: | Lopingian |
| Stage: | Wuchiapingian - Changhsingian | 10 m.y. bin: | Permian 4 |
| Key time interval: | Wuchiapingian - Changhsingian | ||
| Age range of interval: | 259.857 - 251.902 m.y. ago |
Stratigraphy
| Formation: | Toyoma |
Lithology and environment
| Primary lithology: | black "shale" |
| 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: | 133502 | ||
| Authorizer: | M. Clapham | Enterer: | P. Vazquez | Research group: | vertebrate |
| Created: | 2012-09-14 07:50:15 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2012-09-14 07:50:15 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 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] |