USGS 17681, Kimmu-wan: Gelasian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Turbinidae
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Bolma sp.
Risso 1826
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Gastropoda
- Eucyclidae
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Lischkeia aff. monilifera
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Anthozoa
- Scleractinia
- Turbinoliidae
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Peponocyathus folliculus
(Pourtales 1868)
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Cairns 1994 | ||||||
| see common names | |||||||
Geography
| Country: | Japan | State/province: | Okinawa |
| Coordinates: | 26.4° North, 128.0° East (view map) | ||
| Paleocoordinates: | 26.5° North, 127.7° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Gelasian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Gelasian | ||
| Age range of interval: | 2.58000 - 1.80000 m.y. ago |
Stratigraphy
| Geological group: | Shimajiri | Formation: | Shinzato | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: The uppermost part of the Shimajiri Formation. Shinzato Formation correlated with planktonic foram zones PL5/6 and nannoplankton zones CN12b (upper part), 12c, and 12d by Ujiie (1994). This spans the latest Piacenzian and Gelasian, but a Gelasian age is assigned here following Sato et al. (1999) and Komatsubara et al. (2005). | |||||
Lithology and environment
| Primary lithology: | tuffaceous,gray silty,sandy claystone |
| Includes fossils? | Y |
| Lithology description: Consists for the most part of sandy or silty clays with minor partings of ash. Its color ranges from dark gray to light gray. | |
| Environment: | deep-water indet. |
| Geology comments: Molluscs found in assemblages of the Shinzato Tuff Member occur in depths as much as 300 m, although some can be in shallower water. Generally the assemblage should be regarded as deep-water. | |
Taphonomy
| Modes of preservation: | body,original aragonite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collections held in USNM and UGSG repositories. | |
| Taxonomic list comments:Exhaustive for gastropoda. | |
Metadata
| Also known as: | TKRS 2 | ||
| Database number: | 42175 | ||
| Authorizer: | A. Hendy, M. Clapham | Enterer: | A. Hendy, M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-07-25 20:01:07 | Last modified: | 2017-12-03 20:48:00 |
| Access level: | the public | Released: | 2004-07-25 20:01:07 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 7337. | F. S. MacNeil. 1960. Tertiary and Quaternary Gastropoda of Okinawa: A comparison of the late Miocene, Pliocene, and Pleistocene Gastropoda of Okinawa with related faunas of East Asia together with a resume of the geological setting of the fossiliferous deposits. United States Geological Survey Professional Paper 339:1-148 [A. Miller/C. Ferguson/P. Wagner] |
Secondary references:
| 31202 | S. D. Cairns. 1994. Scleractinia of the Temperate North Pacific. Smithsonian Contributions to Zoology 557:1-150 [W. Kiessling/U. Merkel] |