USGS M-279b, Ryukyu - Foster (1965): Late Pliocene, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Neogastropoda
- Muricidae
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Bivalvia
- Cardiida
- Cardiidae
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Bivalvia
- Venerida
- Veneridae
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Pitar sp.
Römer 1857
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| see common names | |||||||
Geography
| Country: | Japan | State/province: | Ryukyu | County: | Bunera |
| Coordinates: | 24.4° North, 124.2° East (view map) | ||||
| Paleocoordinates: | |||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late Pliocene | ||
| Age range of interval: | 3.6 - 2.58 m.y. ago |
Stratigraphy
| Geological group: | Sakishima | Formation: | Nagura Gravel | Member: | Bunera Clay |
| Local section: | USGS M-279 | Local bed: | b | ||
| Regional section: | Bunera gawa | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The Bunera Clay member of the Nagura Gravel is generally overlain by Pleistocene gravel deposits and may rest unconformably on schist. The clay's thickness is unknown, though is less than 5 m at its type section. | |||||
Lithology and environment
| Primary lithology: | gray,blue poorly lithified silty,sandy,calcareous claystone |
| Includes fossils? | Y |
| Lithology description: Medium to dark gray or bluish gray. It is silty or sandy in places and slightly calcareous | |
| Environment: | offshore |
| Geology comments: Offshore marine habitat on a muddy bottom of moderate depth. | |
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collections probably reposited in USGS and USNM. Identified by F.S. MacNeil | |
| Taxonomic list comments:Forams and plant fossils are present in the Bunera Clay Member at these locations by are not listed. | |
Metadata
| Also known as: | USGS M-279b | ||
| Database number: | 41596 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2004-07-17 20:04:46 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2004-07-17 20:04:46 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 11144. | H. L. Foster. 1965. Geology of Ishigaki-shima Ryukyu-retto. United States Geological Survey Professional Paper 399(A):1-119 [A. Miller/A. Hendy/A. Hendy] |