Iburi Area, Hakobuchi Group, Hokkaido: Campanian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Nuculanida
- Yoldiidae
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? Yoldia hakobutsensis
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see common names |
Geography
Country: | Japan | State/province: | Iburi |
Coordinates: | 42.8° North, 142.5° East (view map) | ||
Paleocoordinates: | 47.6° North, 131.7° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | local area |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Campanian | 10 m.y. bin: | Cretaceous 7 |
Key time interval: | Campanian | ||
Age range of interval: | 83.60000 - 72.10000 m.y. ago |
Stratigraphy
Geological group: | Hakobuchi |
Stratigraphic resolution: | formation |
Lithology and environment
Primary lithology: | sandstone |
Secondary lithology: | fine sandy siltstone |
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: | 39818 | ||
Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
Modifier: | S. Nurnberg | Research group: | marine invertebrate |
Created: | 2004-06-07 11:14:44 | Last modified: | 2004-06-28 08:22:26 |
Access level: | the public | Released: | 2004-06-07 11:14:44 |
Creative Commons license: | CC BY |
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] |