Kiriu, Gunma Prefecture: Roadian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Artiopoda
- Proetida
- Phillipsiidae
|
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| (5 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 36.5° North, 139.4° East (view map) |
| Paleocoordinates: | 8.7° North, 135.9° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| 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: | Nabeyama |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified "siliciclastic" |
| Includes fossils? | Y |
| 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: | 110421 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2011-06-07 14:21:56 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-06-07 14:21:56 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 27406. | T. Kobayashi and T. Hamada. 1984. The Middle and Upper Permian trilobites from the Akasaka Limestone in Gifu Prefecture, west Japan. Proceedings of the Japan Academy, Series B 60:1-4 [M. Clapham/M. Clapham] |
Secondary references:
| 30289 | T. Kobayashi and T. Hamada. 1984. Permian trilobites of Japan in comparison with Asian, Pacific and other faunas. Paleontological Society of Japan Special papers 26:1-92 [M. Clapham/M. Clapham] |