USGS F-114, Ryukyu Island - Foster (1965): Late Pleistocene, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Poritidae
Porites sp. Link 1807
Anthozoa - Scleractinia - Fungiidae
Fungia sp. Lamarck 1801
Gastropoda - Neogastropoda - Conidae
Bivalvia - Pectinida - Pectinidae
Amusium sp. (Röding 1798)
Decatopecten cf. striatus (Schumacher 1817)
Bivalvia - Arcida - Glycymerididae
Glycymeris sp. Da Costa 1778
see common names

Geography
Country:Japan State/province:Ryukyu
Coordinates: 24.4° North, 124.2° East (view map)
Paleocoordinates:
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Quaternary Epoch: Pleistocene
Stage: Late Pleistocene 10 m.y. bin: Cenozoic 6
Key time interval: Late Pleistocene
Age range of interval: 0.129 - 0.0117 m.y. ago
Stratigraphy
Geological group:Sakishima Formation:Ryukyu Limestone
Local section:F-114
Regional section:Ryukyu
Stratigraphic resolution:bed
Stratigraphy comments: The Ryukyu Limestone unconformably overlies rocks of the Ishigaki Group, the Miyara Formation, the Nosoko Formation, and the Omoto Granite. Two principal lithologies are present - a stratified sandy limestone, and a massive coralliferous limestone. Conglomeratic limestone is common at th base of the formation
Lithology and environment
Primary lithology:planar lamination,brown,yellow poorly lithified sandy,calcareous "limestone"
Secondary lithology:fine,shelly/skeletal lithified calcareous "limestone"
Includes fossils?Y
Includes fossils?Y
Lithology description: The sandy foraminiferal limestone consists of sand sized particles loosely to formly cemented together by calcium carbonate. It is white, light tan or cream. The coralliferous limestone is mostly a well lithified, bioclastic, recrystallized limestone composed of tests or fragments of forams, pieces of corals, pieces of algae, and other types of fossils in a groundmass of fine calcareous organic debris.
Environment:carbonate indet.
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:all microfossils
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collection method comments: Probably reposited in USGS and USNM collections
Taxonomic list comments:Representative of corals and mollusca. Identified by J.W. Wells (corals) and F.S. MacNeil (mollusca)
Metadata
Also known as:USGS F-114
Database number:41603
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-07-17 22:54:31 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-07-17 22:54:31
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]