Ochi Area, Miyanohara Formation, Shikoku: Cenomanian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pholadomyida - Pholadomyidae
Bivalvia - Trigoniida - Megatrigoniidae
Bivalvia - Carditida - Crassatellidae
Bivalvia - Trigoniida - Megatrigoniidae
see common names

Geography
Country:Japan State/province:Kochi
Coordinates: 33.5° North, 133.3° East (view map)
Paleocoordinates:38.6° North, 140.8° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Cenomanian 10 m.y. bin: Cretaceous 5
Key time interval: Cenomanian
Age range of interval: 100.5 - 93.9 m.y. ago
Stratigraphy
Geological group:Monobegawa Formation:Miyanohara
Stratigraphic resolution:formation
Stratigraphy comments: Upper Monobegawa Group
Lithology and environment
Primary lithology: conglomerate
Secondary lithology: "shale"
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:39976
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2004-06-13 08:23:40 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-06-13 08:23:40
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]