USGS M-278a, Ryukyu - Foster (1965): Late Pliocene, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Neogastropoda - Nassariidae
Gastropoda - Cerithiidae
Gastropoda - Turritellidae
Bivalvia - Protobranchia - Nuculanidae
Bivalvia - Pectinida - Pectinidae
Chlamys nobilis (Reeve 1852)
Bivalvia - Cardiida - Psammobiidae
? Soletellina sp. Blainville 1824
juvenile
Bivalvia - Cardiida - Cardiidae
Laevicardium sp. Swainson 1840
fragment
Bivalvia - Venerida - Veneridae
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-278 Local bed:a
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-278a
Database number:41599
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-07-17 20:20:38 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-07-17 20:20:38
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]