USGS M-277c, Ryukyu - Foster (1965): Late Pliocene, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Pectinidae
Chlamys cf. squamata (Gmelin 1791)
Amusium sp. (Röding 1798)
fragment
Bivalvia - Arcida - Arcidae
Striarca sp. Conrad 1862
juvenile
Bivalvia - Ostreida - Gryphaeidae
Ostrea hyotis (Linnaeus 1758)
Bivalvia - Pholadida - Teredinidae
Kuphus sp. Guettard 1770
Bivalvia - Cardiida - Tellinidae
Tellina sp. Linnaeus 1758
Bivalvia - Cardiida - Solecurtidae
Bivalvia - Venerida - Chamidae
Bivalvia - Venerida - Veneridae
Leucoma sp. (Römer 1857)
juvenile
Gastropoda - Cerithiidae
Gastropoda - Turritellidae
Gastropoda - Naticidae
Gastropoda - Strombidae
Gastropoda - Neogastropoda - Nassariidae
Gastropoda - Neogastropoda - Columbellidae
Gastropoda - Neogastropoda - Fasciolariidae
Fusinus cf. colus (Linnaeus 1758)
Gastropoda - Neogastropoda - Muricidae
Gastropoda - Neogastropoda - Mangeliidae
Mangelia sp. Risso 1826
Gastropoda - Neogastropoda - Turridae
? Micantapex sp. Iredale 1936
juvenile
Gastropoda - Neogastropoda - Drilliidae
Clavus sp. Monfort 1810
juvenile
Gastropoda - Cypraeidae
Gastropoda - Ranellidae
Gastropoda - Heterostropha - Architectonicidae
Architectonica sp. Röding 1798
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-277 Local bed:c
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-277c
Database number:41600
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-07-17 20:24:02 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-07-17 20:24:02
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]