Urakawa Area, Upper Yezo Group, Hokkaido: Campanian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Lucinida - Lucinidae
Myrtea ezoensis (Nagao 1957)
Bivalvia - Protobranchia - Nuculanidae
see common names

Geography
Country:Japan State/province:Hidaka
Coordinates: 42.2° North, 142.8° East (view map)
Paleocoordinates:50.6° North, 133.1° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Campanian
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Geological group:Upper Yezo
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: mudstone
Lithology description: containing calcareous nodules
Environment:marine indet.
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:40589
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2004-06-26 01:57:48 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-06-26 01:57:48
Creative Commons license:CC0
Reference information

Primary reference:
10664. I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]