USGS 17633, southwest of China (FSM 11, 22-33-14) (Pleistocene of Japan)

Where: Okinawa, Japan (26.2° N, 127.8° E: paleocoordinates 26.3° N, 127.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Shinzato Formation (Shimajiri Group), Gelasian (2.6 - 1.8 Ma)

• 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).

• bed-level stratigraphic resolution

Environment/lithology: deep-water; poorly lithified, tuffaceous, gray, silty, sandy claystone

• 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.
• Consists for the most part of sandy or silty clays with minor partings of ash. Its color ranges from dark gray to light gray.

Size class: macrofossils

Preservation: original aragonite

Collected by F. Stearns MacNeil; reposited in the USNM

Collection methods: quarrying,

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 42178: authorized by Austin Hendy, entered by Austin Hendy on 25.07.2004, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for gastropoda.
 Terebratulida - Frenulinidae
Jolonica macneili n. sp. Cooper 1957
 Neogastropoda - Olividae
 Neogastropoda -
"Ancilla (Baryspira) cf. albocallosa" = Amalda (Baryspira)2
"Ancilla (Baryspira) cf. albocallosa" = Amalda (Baryspira)2 snail
 Neogastropoda - Buccinidae
 Neogastropoda - Volutidae
 Neogastropoda - Costellariidae
Uromitra teschi2 ribbed mitre
 Neogastropoda - Muricidae
Murex saplisi2 murex snail
 Neogastropoda - Mangeliidae
""Mangelia" china" = Cythara (Mangelia)2
""Mangelia" china" = Cythara (Mangelia)2 snail
 Neogastropoda - Turridae
Gemmula sp.2 Weinkauff 1875 turrid
 Neogastropoda - Raphitomidae
 Neogastropoda - Conidae
Conus loochooensis2 cone shell
"Conus cf. litteratus" = Conus (Lithoconus) litteratus2 Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
Terebra pretiosa2 auger snail
 Ficoidea - Ficidae
 Vanikoroidea - Hipponicidae
 Vanikoroidea - Eulimidae
 Naticoidea - Naticidae
Natica cf. vitellus2 Linnaeus 1758 moon snail
"Naticarius cf. niasensis" = Aloconatica niasensis2 Wissema 1947 moon snail
Mammilla melanostoma2 Gmelin 1791 moon snail
Polinices candidissimus3 Le Guillou 1842 moon snail
 Tonnoidea - Ranellidae
Biplex perca2 triton shell
 Tonnoidea - Tonnidae
Tonna luteostoma2 tun shell
 Tonnoidea - Bursidae
Bursa (Tutufa) aff. corrugata2 Perry 1811 frog shell
 Scleractinia - Micrabaciidae
Stephanophyllia fungulus1 Alcock 1902 stony coral
 Scleractinia - Turbinoliidae
Alatotrochus rubescens1 Moseley 1876 stony coral