Nidano-sawa Valley, Locality KA-4, Kurosawa Region: Wordian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Cephalopoda
- Pseudorthocerida
- Orthoceratoidea
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 39.0° North, 141.5° East (view map) |
| Paleocoordinates: | 7.0° North, 137.6° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Wordian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Wordian | ||
| Age range of interval: | 266.9 - 264.28 m.y. ago |
Stratigraphy
| Formation: | Ochiai | Member: | Toyazawa | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The exact stratigraphic horizon from which this block was derived is unknown, but it is highly likely that this block came from the middle part of the Toyazawa Member of the Ochiai Formation, based on its lithofacies and collected locality. | |||||
Lithology and environment
| Primary lithology: | lithified "shale" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float),field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 116011 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2011-09-05 02:35:26 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-09-05 02:35:26 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 33634. | S. Niko and M. Ehiro. 2002. Permian orthoconic cephalopods of the Ochiai Formation in the southern Kitakami Mountains, northeast Japan. Paleontological Research 6:385-389 [M. Clapham/M. Clapham] |