Kashima: Priabonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Chondrichthyes
- Hexanchiformes
- Hexanchidae
|
|||||||
|
Chondrichthyes
- Pristiophoriformes
- Pristiophoridae
|
|||||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Hokkaido | County: | Yubari |
| Coordinates: | 43.1° North, 141.8° East (view map) | ||||
| Paleocoordinates: | 48.5° North, 136.0° East (Wright 2013) | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Priabonian | ||
| Age range of interval: | 37.71 - 33.9 m.y. ago |
Stratigraphy
| Formation: | Poronai | ||||
| Stratigraphy comments: originally Upper Oligocene
fifth zone of the Poronai Formation |
Lithology and environment
| Primary lithology: | not reported |
| Includes fossils? | Y |
| Environment: | marine indet. |
| Geology comments: cold sea environment | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 202922 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen |
| Modifier: | M. Uhen | Research group: | vertebrate |
| Created: | 2019-07-23 13:21:28 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2019-07-23 13:21:28 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 61546. | S. Applegate and T. Uyeno. 1968. The First Discovery of a Fossil Tooth belonging to the Shark Genus Heptracnchias, with a New Pristiophorus Spine, Both from the Oligocene of Japan. Bulletin of the National Science Museum, Tokyo 11(2):195-201 [M. Uhen/B. Shipps/M. Uhen] |