Where: Okinawa, Japan (26.2° N, 127.7° E: paleocoordinates 26.3° N, 127.5° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Naha Formation (Ryukyu Group), Calabrian to Calabrian (1.8 - 0.1 Ma)
• The lower part of the Riukiu Limestone is called the Naha Limestone. Naha Formation ranges from the middle Calabrian (c. 1.3 Ma) to the Middle Pleistocene (c. 0.4 Ma), according to Yamamoto et al. (2006).
• bed-level stratigraphic resolution
Environment/lithology: lagoonal or restricted shallow subtidal; poorly lithified, brown, white, calcareous grainstone and poorly lithified, brown, white limestone
Size class: macrofossils
Preservation: original aragonite
Collected by R. Stearns MacNeil; reposited in the USNM
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 42305: authorized by Austin Hendy, entered by Austin Hendy on 27.07.2004, edited by Matthew Clapham
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Kikaithyris hanzawai Yabe 1932
Pictothyris picta Dillwyn 1817 | |
Gryphus hanzawai Yabe and Hatai 1935 | |
Gastropoda | |
Haliotis cf. diversicolor abalone | |
Calliostoma (Tristicotrochus) nahaensis top snail | |
"Marmorostoma argyrostoma" = Turbo (Marmarostoma), Marmorostoma (Batillus) cf. cornuta, "Turbo petholatus" = Turbo (Turbo) petholatus, "Angaria delphinus" = Delphinula delphinus
"Marmorostoma argyrostoma" = Turbo (Marmarostoma) snail
"Turbo petholatus" = Turbo (Turbo) petholatus Linnaeus 1758 snail
"Angaria delphinus" = Delphinula delphinus Linnaeus 1758 laciniated dolphin shell | |
Cantharus (Pollia) sp. Sowerby 1843 true whelk | |
Mitra (Nebularia) cf. hanleyana mitre shell | |
Lyria rex volute | |
Tibia sp. Röding 1798 true conch | |
Cypraea sp., "Cypraea (Lyncina) cf. arenosa" = Cypraea (Lyncina) schilderorum, "Cypraea (Lyncina) cf. carneola" = Lyncina carneola, "Erosaria (Ravitrona) helvola" = Cypraea (Erosaria) helvola
Cypraea sp. Linnaeus 1758 cowry
"Cypraea (Lyncina) cf. arenosa" = Cypraea (Lyncina) schilderorum Iredale 1939 cowry
"Cypraea (Lyncina) cf. carneola" = Lyncina carneola Linnaeus 1758 purple-mouthed cowry
"Erosaria (Ravitrona) helvola" = Cypraea (Erosaria) helvola Linnaeus 1758 cowry | |
Tonna luteostoma tun shell | |
"Cymatium (Lampusia) cf. pileare" = Monoplex pilearis
"Cymatium (Lampusia) cf. pileare" = Monoplex pilearis Linnaeus 1758 triton shell |