USGS F-449, Ryukyu Island - Foster (1965) (Pleistocene of Japan)

Also known as USGS F-449

Where: Ryukyu, Japan (24.4° N, 124.2° E: paleocoordinates 24.4° N, 124.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ryukyu Limestone Formation (Sakishima Group), Late/Upper Pleistocene (0.1 - 0.0 Ma)

• 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

• bed-level stratigraphic resolution

Environment/lithology: poorly lithified, brown, yellow, sandy, calcareous limestone and lithified, fine-grained, shelly/skeletal, calcareous limestone

• 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.

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Collection methods: quarrying,

• Probably reposited in USGS and USNM collections

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 41606: authorized by Austin Hendy, entered by Austin Hendy on 17.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Representative of mollusca. Identified by F.S. MacNeil (mollusca). Corals excluded from list (too many)
Show authors, comments, and common names
Bivalvia
 Carditida - Carditidae
Cardita cf. variegata
Cardita cf. variegata Bruguière 1792 clam
 Cardiida - Chamidae
Chama sp.
Chama sp. Linnaeus 1758 jewel box
 Cardiida - Veneridae
? Lioconcha sp., ? Periglypta sp., Periglypta cf. reticulata, "? Venus (Ventricola) sp." = Antigona (Ventricola)
? Lioconcha sp. Mörch 1853 venus clam
? Periglypta sp. Jukes-Browne 1914 venus clam
Periglypta cf. reticulata Linnaeus 1758 venus clam
"? Venus (Ventricola) sp." = Antigona (Ventricola) Römer 1867 venus clam
 Cardiida - Cardiidae
"Cardium (Trachycardium) sp." = Trachycardium, Tridacna cf. noae, Discors cf. lyrata
"Cardium (Trachycardium) sp." = Trachycardium Mörch 1853 cockle
Tridacna cf. noae Röding 1798 cockle
 Lucinida - Lucinidae
? Lucina sp.
? Lucina sp. Bruguière 1797 clam
 Arcida - Glycymerididae
"Glycymeris (Tucetona) aff. nodosa" = Tucetona, Glycymeris (Tucetona) auriflua, Glycymeris rotunda, Glycymeris sp., Glycymeris cf. vestita
"Glycymeris (Tucetona) aff. nodosa" = Tucetona clam
Glycymeris sp. Da Costa 1778 clam
 Arcida - Arcidae
Barbatia bicolorata, "Arca arabica" = Lamarcka avellana, "Arca ventricosa" = Lamarcka ventricosa, Acar plicata
"Arca arabica" = Lamarcka avellana Lamarck 1819 clam
"Arca ventricosa" = Lamarcka ventricosa Lamarck 1819 clam
Acar plicata Dillwyn 1817 miniature ark
 Pectinida - Pectinoidae
Spondylus sp., Chlamys sp.
Spondylus sp. Linnaeus 1758 scallop
Chlamys sp. Röding 1798 scallop
 Pectinida - Limidae
Lima sowerbyi
Lima sowerbyi file clam
 Ostreida - Ostreidae
Ostrea sp.
Ostrea sp. Linnaeus 1758 oyster
Gastropoda
 Cerithioidea - Cerithiidae
Cerithium aluco, "Contumax citrinus" = Cerithium (Contumax), "Contumax nodulosus" = Cerithium (Contumax)
Cerithium aluco cerith snail
"Contumax citrinus" = Cerithium (Contumax) cerith snail
"Contumax nodulosus" = Cerithium (Contumax) cerith snail
 Sorbeoconcha - Cassidae
"Cassis (Casmaria) erinacea" = Casmaria erincaeus, Cassis cf. cornuta
"Cassis (Casmaria) erinacea" = Casmaria erincaeus Linnaeus 1758 snail
Cassis cf. cornuta Linnaeus 1758 snail
 Sorbeoconcha - Ranellidae
Cymatium sp.
Cymatium sp. Röding 1798 triton shell
 Sorbeoconcha - Cypraeidae
Cypraea sp.
Cypraea sp. Linnaeus 1758 cowry
 Sorbeoconcha - Strombidae
Strombus cf. tridentatus, Strombus (Euprotomus) cf. vomer, "Eustrombus thersites" = Strombus (Eustrombus)
"Eustrombus thersites" = Strombus (Eustrombus) conch
 Neogastropoda - Muricidae
"Murex (Chicoreus) cf. microphyllus" = Chicoreus, Coralliophila cf. costularis
"Murex (Chicoreus) cf. microphyllus" = Chicoreus murex snail
 Neogastropoda - Turbinellidae
Vasum sp.
Vasum sp. Röding 1798 snail
 Neogastropoda - Conidae
Conus sp., Conus cf. lividus, Conus cf. generalis, Conus cf. marmoreus, Conus cf. ebraeus, "Conus cf. litteratus" = Conus (Lithoconus) litteratus
Conus sp. Linnaeus 1758 cone shell
Conus cf. lividus Bruguière 1792 cone shell
Conus cf. generalis Linnaeus 1767 cone shell
Conus cf. marmoreus Linnaeus 1758 cone shell
Conus cf. ebraeus Linnaeus 1758 cone shell
"Conus cf. litteratus" = Conus (Lithoconus) litteratus Linnaeus 1758 cone shell
 Neogastropoda - Terebridae
Terebra cf. straminea, Terebra aff. formosana
 Neogastropoda - Mitridae
Mitra punticulata
Mitra punticulata mitre shell
 Neogastropoda - Olividae
Oliva sp.
Oliva sp. Bruguière 1789 olive snail
 Sorbeoconcha - Perissityidae
"Kelletia sp." = Siphonalia (Kelletia), "Cantharus cf. fumosus" = Cantharus (Pollia) fumosus, Latirus polygonus, Peristernia wagneri, Fasciolaria cf. trapezium, Nassarius sp.
"Kelletia sp." = Siphonalia (Kelletia) Fischer 1884 true whelk
or Latirus sp.
"Cantharus cf. fumosus" = Cantharus (Pollia) fumosus Dillwyn 1817 true whelk
Latirus polygonus Gmelin 1791 true whelk
Nassarius sp. Duméril 1806 true whelk
 Caenogastropoda - Fasciolariidae
Mammilla aff. melanostoma, "Notocochlis gualteriana" = Natica gualteriana, Naticarius sp.
Mammilla aff. melanostoma Gmelin 1791 moon snail
"Notocochlis gualteriana" = Natica gualteriana Récluz 1843 moon snail
Naticarius sp. Dumeril 1806 moon snail
 Trochoidea - Turbinidae
Calcar cf. haematragus, "Marmorostoma agyrostoma" = Turbo (Marmarostoma), "Marmorostoma sp." = Turbo (Marmarostoma), "Marmorostoma (Battillus) cf. cornuta" = Turbo (Marmarostoma), Turbo marmoratus, "Turbo petholatus" = Turbo (Turbo) petholatus
"Marmorostoma agyrostoma" = Turbo (Marmarostoma) snail
"Marmorostoma sp." = Turbo (Marmarostoma) Swainson 1829 snail
"Marmorostoma (Battillus) cf. cornuta" = Turbo (Marmarostoma) snail
Turbo marmoratus Linnaeus 1758 snail
"Turbo petholatus" = Turbo (Turbo) petholatus Linnaeus 1758 snail
 Trochoidea - Trochidae
Tosatrochus attenuatus, Trochus calcaratus, Trochus sp., Monilea belcheri
Tosatrochus attenuatus Jonas 1844 top snail
Trochus sp. Linnaeus 1758 top snail
Monilea belcheri Philippi 1849 top snail