Shioya Group Kanomatazawa Fm Molluscan Fauna Locality 16: Late/Upper Miocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Neogastropoda
- Buccinidae
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Phos iwakianus
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium yokoyamai
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Bivalvia
- Lucinida
- Lucinidae
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Lucinoma annulata
(Reeve 1850)
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| recombined as Lucinoma annulatum | ||||||||||
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Bivalvia
- Cardiida
- Tellinidae
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Macoma optiva
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| Dominant species at locality | ||||||||||
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Bivalvia
- Solenida
- Pharidae
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Cultellus izumoensis
Yokoyama 1923
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia (Cnesterium) notabilis
(Yokoyama 1922)
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Bivalvia
- Nuculida
- Nuculidae
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Acila sp.
Adams and Adams 1858
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| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 36.7° North, 140.1° East (view map) |
| Paleocoordinates: | 38.0° North, 138.6° East |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | local area |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Late/Upper Miocene | ||
| Age range of interval: | 11.63000 - 5.33300 m.y. ago |
Stratigraphy
| Geological group: | Shioya | Formation: | Kanomatazawa | Member: | upper |
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: middle unit of shioya group, divided into two members, lower and upper. | |||||
Lithology and environment
| Primary lithology: | coarse lithified conglomerate |
| Secondary lithology: | gray lithified sandy siltstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: The Kanomatazawa formation is composed of conglomerate sandstone siltstone and acidic pyroclastic rocks. Lithology of the upper member is represented by mudstone in the western side whereas it is represented by coarse clastic sediments in the eastern side of the anticline. | |
| Environment: | marginal marine indet. |
| Glacial or sequence phase: | regressive |
| Geology comments: This formation is subdivided into the lower and upper members. The two members differ from each other in their distribution as well as their lithological characteristics. The Lower member is distributed in the whole surveyed area showing similar lithology at every place. Distribution of the upper member is separated at the sekiya anticline. | |
Taphonomy
| Modes of preservation: | body |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Also known as: | Locality 16 | ||
| Database number: | 52239 | ||
| Authorizer: | A. Miller | Enterer: | K. Bulinski |
| Modifier: | K. Bulinski | Research group: | marine invertebrate |
| Created: | 2005-08-01 11:33:36 | Last modified: | 2005-08-01 14:33:37 |
| Access level: | the public | Released: | 2005-08-01 11:33:36 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 13978. | Y. Iwasaki. 1970. The Shiobara-type Molluscan Fauna: An ecological analysis of fossil molluscs. Journal of the faculty of science, University of Tokyo, Section 2 17(3):351-444 [A. Miller/K. Bulinski/K. Bulinski] |