Shizukawa Area, Hosoura Formation, Honshu: Toarcian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Bivalvia
- Trigoniida
- Myophorellidae
|
|||||||
|
Vaugonia (Vaugonia) niranohamensis
|
|||||||
|
Bivalvia
- Ostreida
- Malleidae
|
|||||||
|
Isognomon (Isognomon) rikuzenicus
|
|||||||
|
Bivalvia
- Myalinida
- Inoceramidae
|
|||||||
|
? Inoceramus kudoi
|
|||||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Miyagi |
| Coordinates: | 38.7° North, 141.4° East (view map) | ||
| Paleocoordinates: | 48.0° North, 149.6° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Jurassic | Epoch: | Early/Lower Jurassic |
| Stage: | Toarcian | 10 m.y. bin: | Jurassic 3 |
| Key time interval: | Toarcian | ||
| Age range of interval: | 184.20000 - 174.70000 m.y. ago |
Lithology and environment
| Primary lithology: | sandy "shale" |
| Secondary lithology: | sandstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 40542 | ||
| Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
| Modifier: | S. Nurnberg | Research group: | marine invertebrate |
| Created: | 2004-06-25 01:09:36 | Last modified: | 2004-06-29 15:08:29 |
| Access level: | the public | Released: | 2004-06-25 01:09:36 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10664. | I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg] |