Abeshinai Area, Upper Yezo Group, Hokkaido: Santonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Bivalvia
- Lucinida
- Lucinidae
|
|||||||
|
Myrtea ezoensis
(Nagao 1957)
|
|||||||
|
Bivalvia
- Ostreida
- Pinnidae
|
|||||||
|
Bivalvia
- Pectinida
- Anomiidae
|
|||||||
|
Bivalvia
- Arcida
- Glycymerididae
|
|||||||
|
Glycymeris (Glycymerita) multicostata
(Sowerby 1833)
|
|||||||
|
Bivalvia
- Protobranchia
- Nuculanidae
|
|||||||
|
Jupiteria (Ezonuculana) mactraeformis
(Nagao 1932)
|
|||||||
|
Bivalvia
- Protobranchia
- Nuculidae
|
|||||||
|
Acila (Truncacila) hokkaidoensis
(Nagao 1932)
|
|||||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Teshio |
| Coordinates: | 44.8° North, 142.0° East (view map) | ||
| Paleocoordinates: | 52.9° North, 135.8° East (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Santonian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Santonian | ||
| Age range of interval: | 85.7 - 83.6 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: | 40126 | ||
| Authorizer: | M. Aberhan | Enterer: | S. Nurnberg |
| Modifier: | S. Nurnberg | Research group: | marine invertebrate |
| Created: | 2004-06-18 09:36:27 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2004-06-18 09:36:27 |
| 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] |