Location 1 - Shimokine Fm, Rumoi: Late/Upper Eocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Carditida
- Carditidae
|
|||||||
Venericardia yokoyamai
(Oyama and Mizuno 1958)
|
|||||||
original and current combination Venericardia (Cyclocardia) yokoyamai | |||||||
Venericardia tokudai
Takeda 1953
|
|||||||
Bivalvia
- Thraciida
- Thraciidae
|
|||||||
Thracia sp.
Blainville 1824
|
|||||||
see common names |
Geography
Country: | Japan |
Coordinates: | 44.0° North, 141.9° East (view map) |
Paleocoordinates: | 46.3° North, 138.1° East |
Basis of coordinate: | based on nearby landmark |
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Late/Upper Eocene | ||
Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
Geological group: | Tappu | Formation: | Shimokine | ||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From Shimokine Fm of the Tappu Gp, a correlative of the Poronai and Shimizusawa Fm. THICKNESS: From bed with formation which reaches a thickness of 500 m. AGE: Late Eocene on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: Unknown position within formation. |
Lithology and environment
Primary lithology: | fine,medium lithified sandstone |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Medium-fine grained sandstone. LITHIFICATION: Assume to be lithified on the basis of age. | |
Environment: | coastal indet. |
Geology comments: ENVIRONMENT: Shallow marine, siliciclastic environment. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | biostratigraphic analysis |
Collection method comments: COLLECTOR: K. Kubo. REPOSITORY: Unknown, not stated in text. | |
Taxonomic list comments:COVERAGE: Exhaustive for bivalvia and gastropoda. NOMENCLATURE: Somewhat antiquated, but with species-level identifications. |
Metadata
Database number: | 71027 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2007-04-14 23:05:07 | Last modified: | 2013-11-25 13:37:23 |
Access level: | authorizer only | Released: | 2008-04-14 23:05:07 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
23771. | A. Mizuno. 1964. Summary of the Paleogene molluscan faunas in North Japan. Geological Survey of Japan Report 207 [A. Hendy/A. Hendy/A. Hendy] |