Makawa River, Arimine: Middle Oxfordian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Perisphinctidae
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Perisphinctes (Dichotomosphinctes) kiritaniensis
(Sato 1962)
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 36.5° North, 137.5° East (view map) |
| Paleocoordinates: | 54.6° North, 148.4° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Late Jurassic |
| Stage: | Oxfordian | 10 m.y. bin: | Jurassic 5 |
| Key time interval: | Middle Oxfordian | ||
| Age range of interval: | 159 - 157.9 m.y. ago |
Stratigraphy
| Formation: | Arimine |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified siltstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: National Museum of Nature and Science, Tokyo (NMNS) | |
Metadata
| Database number: | 182867 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2016-11-27 15:58:39 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2016-11-27 15:58:39 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 61001. | T. Sato and T. Yamada. 2014. A new Oxfordian (Late Jurassic) ammonite assemblage from the Arimine Formation (Tetori Group) in the Arimine area, southeastern Toyama Prefecture, northern Central Japan. Bulletin of the National Museum of Nature and Science, Series C, Geology and Paleontology 40:21-55 [M. Clapham/M. Clapham] |