Loc. 72907p, Sanjussen-zawa: Early Cenomanian, Japan
collected by A. Inoma, W. Hashimoto
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Ammonitida
- Acanthoceratidae
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Graysonites adkinsi
Young 1958
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 44.2° North, 142.1° East (view map) |
| Paleocoordinates: | 50.6° North, 147.0° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Cenomanian | 10 m.y. bin: | Cretaceous 5 |
| Key time interval: | Early Cenomanian | ||
| Age range of interval: | 100.5 - 93.9 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified mudstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collectors: | A. Inoma, W. Hashimoto |
| Collection method comments: Repository: Institute of Geoscience, the University of Tsukuba | |
Metadata
| Database number: | 174509 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2015-11-14 09:59:51 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-11-14 09:59:51 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 56925. | T. Matsumoto, T. Nishida, and S. Toshimitsu. 2003. Early Cenomanian (Cretaceous) ammonoids Utaturiceras and Graysonites from Hokkaido, North Japan. Bulletin of the Geological Survey of Japan 54:131-159 [M. Clapham/M. Clapham] |