IZM-2, Okawa: Early Maastrichtian, Japan
collected by Sato, Miyamoto
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
- Retroplumidae
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Archaeopus ezoensis
(Nagao 1941)
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 34.2° North, 134.8° East (view map) |
| Paleocoordinates: | 40.1° North, 125.6° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
| Key time interval: | Early Maastrichtian | Inoceramid zone: | Pachydiscus aff. subcompressus |
| Age range of interval: | 72.2 - 66 m.y. ago |
Lithology and environment
| Primary lithology: | nodular lithified "siliciclastic" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collectors: | Sato, Miyamoto |
Metadata
| Database number: | 185018 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | decapod,marine invertebrate |
| Created: | 2017-04-05 00:39:34 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2017-04-05 00:39:34 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 41704. | decapod | H. Collins, Y. Kanie, and H. Karasawa. 1993. Late Cretaceous crabs from Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 172:292-310 [C. Schweitzer/E. Johnson/M. Clapham] |