USGS 25653, Navaka River (SM43C): Middle Pleistocene, Vanuatu
collected by D.I.J. Mallick
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Terebratulida
- Frenulinidae
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Frenulina sp.
Dall 1894
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Rhynchonellata
- Terebratulida
- Platidiidae
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Platidia blowi n. sp.
Cooper 1978
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Rhynchonellata
- Terebratulida
- Cancellothyrididae
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Terebratulina informal sp. 2
d'Orbigny 1847
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Rhynchonellata
- Thecideida
- Thecidellinidae
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Thecidellina informal sp. 1
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| see common names | |||||||
Geography
| Country: | Vanuatu |
| Coordinates: | 15.6° South, 166.9° East (view map) |
| Paleocoordinates: | 15.6° South, 166.8° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Chibanian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Middle Pleistocene | ||
| Age range of interval: | 0.77400 - 0.12900 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Very well-preserved ahermatypic corals (Flabellum spp.) collected in 2006 from Kere 2 have been dated by the Uranium/Thorium method and established an age of 232 +/- 10 ka. The same species of coral from the overlying deposit of Kere 1 gave an age of 133 +/- 5.5 ka. These reliable benchmarks suggest that the Kere sequence was deposited during the warmer Marine Isotope Stages (also named OIS for "Oxygen Isotope Stage") MIS 7 (Kere 2) and MIS 5 (Kere 1). (Lozouet et al., 2011) Navaka River deposits presumably also middle Pleistocene. | |||||
Lithology and environment
| Primary lithology: | gray unlithified silty sandstone |
| Lithology description: Unlithified based on illustrated specimen and from field photos in Lozouet et al. (2011). | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collectors: | D.I.J. Mallick |
Metadata
| Database number: | 186826 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2017-07-05 01:00:10 | Last modified: | 2017-08-09 00:14:20 |
| Access level: | the public | Released: | 2017-07-05 01:00:10 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 62649. | G. A. Cooper. 1978. Tertiary and Quaternary brachiopods from the southwest Pacific. Smithsonian Contributions to Paleobiology 38:1-23 [M. Clapham/M. Clapham] |