Izumi Mountains, Izumi Group, Honshu: Maastrichtian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Arcida - Parallelodontidae
Bivalvia - Carditida - Astartidae
Bivalvia - Pandorida - Laternulidae
Bivalvia - Adapedonta - Pharidae
Bivalvia - Protobranchia - Nuculidae
see common names

Geography
Country:Japan State/province:Osaka, Wakayama
Coordinates: 34.5° North, 135.4° East (view map)
Paleocoordinates:40.4° North, 126.2° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:local area
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Maastrichtian 10 m.y. bin: Cretaceous 8
Key time interval: Maastrichtian
Age range of interval: 72.2 - 66 m.y. ago
Stratigraphy
Geological group:Izumi Formation:Shimonada siltstone & Kitaama Sandstone
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: siltstone
Secondary lithology: sandstone
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:39906
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Subset of collection #:1396
Created:2004-06-12 09:34:56 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-06-12 09:34:56
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]