Ashiya 2 [Yamaga Formation]: Early Miocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Naticidae
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Euspira meisensis
(Makiyama 1926)
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 33.9° North, 130.7° East (view map) |
| Paleocoordinates: | 33.5° North, 127.9° East (Wright 2013) |
| Basis of coordinate: | stated in text |
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5 | ||
| Key time interval: | Early Miocene | ||
| Age range of interval: | 23.04 - 15.98 m.y. ago |
Stratigraphy
| Formation: | Yamaga | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: Yamaga Fm. AGE: Listed as lower Miocene. | |||||
Lithology and environment
| Primary lithology: | sandy siltstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Sandy siltstone. LITHIFICATION: Unknown. | |
| Environment: | marine indet. |
| Geology comments: ENVIRONMENT: Not stated, but apparently shallow marine siliciclastic. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTOR: Unknown. REPOSITORY Unknown. | |
| Taxonomic list comments:COVERAGE: Only includes Naticidae. NOMENCLATURE: Authoritative publication, with taxa assigned to species resolution. | |
Metadata
| Database number: | 78435 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2008-02-06 20:05:17 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2008-02-06 20:05:17 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 26376. | R. Majima. 1989. Cenozoic fossil Naticidae (Mollusca: Gastropoda) in Japan. Bulletins of American Paleontology 96(331):1-159 [A. Hendy/A. Hendy] |