Concretion 20050731-13p, Pankeushappu River tributary: Middle Campanian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Desmoceratidae
Cephalopoda - Ammonitida - Pachydiscidae
see common names

Geography
Country:Japan
Coordinates: 42.9° North, 142.4° East (view map)
Paleocoordinates:47.9° North, 140.1° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:hand sample
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Middle Campanian
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Geological group:Yezo Formation:Chinomigawa
Stratigraphic resolution:bed
Stratigraphy comments: Middle Campanian "Soya Fauna"
Lithology and environment
Primary lithology:concretionary lithified sandy mudstone
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:surface (float)
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Hobetsu Museum, Mukawa
Metadata
Database number:199735
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2019-02-09 10:31:52 Last modified:2025-02-22 15:12:02
Access level:the public Released:2019-02-09 10:31:52
Creative Commons license:CC0
Reference information

Primary reference:
67899. Y. Shigeta and M. Izukura. 2018. Discovery of the middle Campanian (Late Cretaceous) "Soya Fauna" ammonoids in the Hidaka area, Hokkaido, Japan. The Bulletin of the Hobetsu Museum 33:11-25 [M. Clapham/M. Clapham]