Station 169 - Futagojima Fm, Takashima: Middle Eocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Pynodonte cassis
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R category | ||||||
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Gastropoda
- Turritellidae
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Colpospira okadai
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R category | ||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea sp.
Lamarck 1799
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R category | ||||||
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Gastropoda
- Thersiteidae
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"Orthaulax" japonicus
Nagao 1924
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C category | ||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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? Pseudoneptunea sp.
Kobelt 1882
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R category | ||||||
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Gastropoda
- Naticidae
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Polinices eocenica
Nagao 1928
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C category | ||||||
| recombined as Neverita eocenica | |||||||
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Bivalvia
- Arcida
- Arcidae
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Arcidae indet.
Lamarck 1809
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R category | ||||||
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Bivalvia
- Cardiida
- Veneridae
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Pitar hinokumai
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A category | ||||||
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Bivalvia
- Solenida
- Pharidae
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Phaxas brevis
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R category | ||||||
| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 33.0° North, 129.5° East (view map) |
| Paleocoordinates: | 38.4° North, 123.3° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 2-3 | ||
| Key time interval: | Middle Eocene | ||
| Age range of interval: | 47.80000 - 37.71000 m.y. ago |
Stratigraphy
| Formation: | Futagojima | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Futagojima Fm, which overlies the Koyagi Fm, and underlies the Hashima Fm. THICKNESS: From bed within lower part of formation that attains a thickness of 320 m. AGE: Middle Eocene, based on molluscan biostratigraphy. STRATIGRAPHIC POSITION: From bed near base of formation. | |||||
Lithology and environment
| Primary lithology: | lithified siltstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Siltstone. LITHIFICATION: Presumed 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: | surface (float),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: COLLECTOR: A. Mizuno (c. 1964). REPOSITORY: Not stated in text, unknown. | |
| Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: Farly modern nomenclature, and species-level assignments. | |
Metadata
| Database number: | 71011 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-04-14 12:50:13 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | database members | Released: | 2007-04-14 12:50:09 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 23772. | A. Mizuno. 1964. Paleogene and Early Neogene molluscan faunae in West Japan. Geological Survey of Japan Report 204 [A. Hendy/A. Hendy] |