Kumanosawa Creek: Santonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Cephalopoda
- Octopoda
|
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| 1 specimen | |||||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Hokkaido Region | County: | Tomamae County |
| Coordinates: | 44.2° North, 142.0° East (view map) | ||||
| Paleocoordinates: | 52.3° North, 136.2° East (Wright 2013) | ||||
| Basis of coordinate: | stated in text |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Santonian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Santonian | ||
| Age range of interval: | 85.7 - 83.6 m.y. ago |
Stratigraphy
| Geological group: | Yezo | Formation: | Haborogawa |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 278671 | ||
| Authorizer: | M. Uhen | Enterer: | M. Uhen | Research group: | vertebrate |
| Created: | 2026-04-29 12:29:33 | Last modified: | 2026-04-29 12:29:33 |
| Access level: | the public | Released: | 0000-00-00 00:00:00 |
| Creative Commons license: |
Reference information
Primary reference:
| 94699. | S. Ikegami, J. Mutterlose, K. Sugiura, Y. Takeda, M. O. Derin, A. Kubota, K. Tainaka, T. Harada, H. Nishida and Y. Iba. 2026. Earliest octopuses were giant top predators in Cretaceous oceans. Science 392(6796):406-410 [M. Uhen/M. Uhen] |