Sososhi-sawa River: Early Maastrichtian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Cephalopoda
- Ammonitida
- Tetragonitidae
|
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| (2 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 42.9° North, 142.1° East (view map) |
| Paleocoordinates: | 50.4° North, 128.0° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Early Maastrichtian | ||
| Age range of interval: | 72.2 - 66 m.y. ago |
Stratigraphy
| Formation: | Hakobuchi |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified muddy sandstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Hobetsu Museum, Mukawa, Hokkaido | |
Metadata
| Database number: | 174601 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2015-11-16 23:47:42 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-11-16 23:47:42 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 56994. | Y. Shigeta and T. Nishimura. 2014. A new species of Anagaudryceras (Ammonoidea, Gaudryceratidae) from the lowest Maastrichtian of Hokkaido, Japan. Paleontological Research 18:176-185 [M. Clapham/M. Clapham] |