USGS 25650, Navaka River (SM43A) (Pleistocene of Vanuatu)

Where: Vanuatu (15.6° S, 166.9° E: paleocoordinates 15.6° S, 166.8° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Middle Pleistocene (0.8 - 0.1 Ma)

• 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.

• group of beds-level stratigraphic resolution

Environment/lithology: unlithified, gray, calcareous siltstone

• "grey marl-siltstone" according to Lozouet et al. (2011) and unlithified based on their field photos.

Size class: macrofossils

Collected by D.I.J. Mallick; reposited in the USNM

Primary reference: G. A. Cooper. 1978. Tertiary and Quaternary brachiopods from the southwest Pacific. Smithsonian Contributions to Paleobiology 38:1-23 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 186823: authorized by Matthew Clapham, entered by Matthew Clapham on 05.07.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Rhynchonellata
 Thecideida - Thecidellinidae
 Terebratulida - Terebratulidae
 Terebratulida - Cancellothyrididae
Terebratulina "sp. 2" d'Orbigny 1847
 Rhynchonellida - Basiliolidae
Basiliola sp. Dall 1908