USGS 17633, southwest of China (FSM 11, 22-33-14): Gelasian, Japan
collected by F. Stearns MacNeil

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa - Scleractinia - Micrabaciidae
Cairns 1994
Anthozoa - Scleractinia - Turbinoliidae
Alatotrochus rubescens (Moseley 1876)
Cairns 1994
Gastropoda - Naticidae
MacNeil 1960
Natica cf. vitellus (Linnaeus 1758)
MacNeil 1960
Mammilla melanostoma (Gmelin 1791)
MacNeil 1960
MacNeil 1960
    = Polinices candidissimus Le Guillou 1842
Majima 1989
Gastropoda - Ranellidae
MacNeil 1960
Gastropoda - Bursidae
MacNeil 1960
Gastropoda - Tonnidae
MacNeil 1960
Gastropoda - Neogastropoda - Cominellidae
MacNeil 1960
Gastropoda - Neogastropoda - Raphitomidae
MacNeil 1960
Gastropoda - Neogastropoda - Turridae
Gemmula sp. (Weinkauff 1875)
MacNeil 1960
Gastropoda - Neogastropoda - Conidae
Conus cf. litteratus Linnaeus 1758
MacNeil 1960
MacNeil 1960
MacNeil 1960
MacNeil 1960
Gastropoda - Neogastropoda - Mangeliidae
MacNeil 1960
Gastropoda - Neogastropoda - Terebridae
MacNeil 1960
Gastropoda - Neogastropoda - Costellariidae
MacNeil 1960
Gastropoda - Neogastropoda - Ancillariidae
MacNeil 1960
Gastropoda - Neogastropoda - Olividae
MacNeil 1960
Gastropoda - Neogastropoda - Muricidae
MacNeil 1960
Gastropoda - Neogastropoda - Volutidae
MacNeil 1960
Gastropoda - Ficidae
MacNeil 1960
Gastropoda - Hipponicidae
MacNeil 1960
MacNeil 1960
Gastropoda - Eulimidae
MacNeil 1960
Rhynchonellata - Terebratulida - Frenulinidae
see common names

Geography
Country:Japan State/province:Okinawa
Coordinates: 26.2° North, 127.8° East (view map)
Paleocoordinates:
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Quaternary Epoch: Pleistocene
Stage: Gelasian 10 m.y. bin: Cenozoic 6
Key time interval: Gelasian
Age range of interval: 2.58 - 1.8 m.y. ago
Stratigraphy
Geological group:Shimajiri Formation:Shinzato
Stratigraphic resolution:bed
Stratigraphy comments: The uppermost part of the Shimajiri Formation. Shinzato Formation correlated with planktonic foram zones PL5/6 and nannoplankton zones CN12b (upper part), 12c, and 12d by Ujiie (1994). This spans the latest Piacenzian and Gelasian, but a Gelasian age is assigned here following Sato et al. (1999) and Komatsubara et al. (2005).
Lithology and environment
Primary lithology:tuffaceous,gray poorly lithified silty,sandy claystone
Includes fossils?Y
Lithology description: Consists for the most part of sandy or silty clays with minor partings of ash. Its color ranges from dark gray to light gray.
Environment:deep-water indet.
Geology comments: Molluscs found in assemblages of the Shinzato Tuff Member occur in depths as much as 300 m, although some can be in shallower water. Generally the assemblage should be regarded as deep-water.
Taphonomy
Modes of preservation:body,original aragonite
Size of fossils:macrofossils
Collection methods and comments
Collection methods:selective quarrying,field collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collectors:F. Stearns MacNeil
Taxonomic list comments:Exhaustive for gastropoda.
Metadata
Database number:42178
Authorizer:A. Hendy, M. Clapham Enterer:A. Hendy, M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2004-07-25 20:02:10 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-07-25 20:02:10
Creative Commons license:CC0
Reference information

Primary reference:
39467. G. A. Cooper. 1957. Tertiary and Pleistocene Brachiopods of Okinawa, Ryukyu Islands. United States Geological Survey Professional Paper 314(A):1-20 [A. Hendy/A. Hendy]

Secondary references:

31202 S. D. Cairns. 1994. Scleractinia of the Temperate North Pacific. Smithsonian Contributions to Zoology 557:1-150 [W. Kiessling/U. Merkel]
7337 F. S. MacNeil. 1960. Tertiary and Quaternary Gastropoda of Okinawa: A comparison of the late Miocene, Pliocene, and Pleistocene Gastropoda of Okinawa with related faunas of East Asia together with a resume of the geological setting of the fossiliferous deposits. United States Geological Survey Professional Paper 339:1-148 [A. Miller/C. Ferguson/P. Wagner]
26376 R. Majima. 1989. Cenozoic fossil Naticidae (Mollusca: Gastropoda) in Japan. Bulletins of American Paleontology 96(331):1-159 [A. Hendy/A. Hendy]