A tributary of Kamikinenbetsu Creek: Late Turonian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Octopoda
1 specimen
see common names

Geography
Country:Japan
Coordinates: 44.1° North, 143.0° East (view map)
Paleocoordinates:43.3° North, 159.6° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Turonian 10 m.y. bin: Cretaceous 6
Key time interval: Late Turonian
Age range of interval: 93.9 - 89.8 m.y. ago
Stratigraphy
Geological group:Yezu Formation:Saku
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified sandy siltstone
Environment:marine indet.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float)
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Kyushu University Museum, Fukuoka, Japan
Metadata
Database number:278670
Authorizer:M. Uhen Enterer:M. Uhen
Research group:marine invertebrate
Created:2026-04-29 12:27:20 Last modified:2026-04-29 12:27:20
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]