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
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
Bivalvia | |
Cardita cf. variegata Bruguière 1792 clam | |
Chama sp. Linnaeus 1758 jewel box | |
? 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 | |
"Cardium (Trachycardium) sp." = Trachycardium Mörch 1853 cockle
Tridacna cf. noae Röding 1798 cockle
Discors cf. lyrata cockle | |
? Lucina sp. Bruguière 1797 clam | |
"Glycymeris (Tucetona) aff. nodosa" = Tucetona, Glycymeris (Tucetona) auriflua, Glycymeris rotunda, Glycymeris sp., Glycymeris cf. vestita
"Glycymeris (Tucetona) aff. nodosa" = Tucetona clam
Glycymeris (Tucetona) auriflua Reeve 1843 clam
Glycymeris rotunda clam
Glycymeris sp. Da Costa 1778 clam | |
Barbatia bicolorata, "Arca arabica" = Lamarcka avellana, "Arca ventricosa" = Lamarcka ventricosa, Acar plicata
Barbatia bicolorata clam
"Arca arabica" = Lamarcka avellana Lamarck 1819 clam
"Arca ventricosa" = Lamarcka ventricosa Lamarck 1819 clam
Acar plicata Dillwyn 1817 miniature ark | |
Spondylus sp. Linnaeus 1758 scallop
Chlamys sp. Röding 1798 scallop | |
Lima sowerbyi file clam | |
Ostrea sp. Linnaeus 1758 oyster | |
Gastropoda | |
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 | |
"Cassis (Casmaria) erinacea" = Casmaria erincaeus, Cassis cf. cornuta
"Cassis (Casmaria) erinacea" = Casmaria erincaeus Linnaeus 1758 snail
Cassis cf. cornuta Linnaeus 1758 snail | |
Cymatium sp. Röding 1798 triton shell | |
Cypraea sp. Linnaeus 1758 cowry | |
Strombus cf. tridentatus, Strombus (Euprotomus) cf. vomer, "Eustrombus thersites" = Strombus (Eustrombus)
Strombus cf. tridentatus conch
Strombus (Euprotomus) cf. vomer Röding 1798 conch
"Eustrombus thersites" = Strombus (Eustrombus) conch | |
"Murex (Chicoreus) cf. microphyllus" = Chicoreus, Coralliophila cf. costularis
"Murex (Chicoreus) cf. microphyllus" = Chicoreus murex snail
Coralliophila cf. costularis murex snail | |
Vasum sp. Röding 1798 snail | |
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 | |
Terebra cf. straminea auger snail
Terebra aff. formosana auger snail | |
Mitra punticulata mitre shell | |
Oliva sp. Bruguière 1789 olive snail | |
"Kelletia sp." = Siphonalia (Kelletia), "Cantharus cf. fumosus" = Cantharus (Pollia) fumosus, Latirus polygonus, Peristernia wagneri, Fasciolaria cf. trapezium, Nassarius sp.
"Cantharus cf. fumosus" = Cantharus (Pollia) fumosus Dillwyn 1817 true whelk
Latirus polygonus Gmelin 1791 true whelk
Peristernia wagneri true whelk
Fasciolaria cf. trapezium tulip snail
Nassarius sp. Duméril 1806 true whelk | |
Mammilla aff. melanostoma Gmelin 1791 moon snail
"Notocochlis gualteriana" = Natica gualteriana Récluz 1843 moon snail
Naticarius sp. Dumeril 1806 moon snail | |
Calcar cf. haematragus, "Marmorostoma agyrostoma" = Turbo (Marmarostoma), "Marmorostoma sp." = Turbo (Marmarostoma), "Marmorostoma (Battillus) cf. cornuta" = Turbo (Marmarostoma), Turbo marmoratus, "Turbo petholatus" = Turbo (Turbo) petholatus
Calcar cf. haematragus snail
"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 | |
Tosatrochus attenuatus Jonas 1844 top snail
Trochus calcaratus top snail
Trochus sp. Linnaeus 1758 top snail
Monilea belcheri Philippi 1849 top snail |