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
Gastropoda | |
"Cymatium (Lampusia) cf. pileare" = Monoplex pilearis
"Cymatium (Lampusia) cf. pileare" = Monoplex pilearis Linnaeus 1758 triton shell | |
Tonna luteostoma tun shell | |
"Cypraea (Lyncina) cf. carneola" = Lyncina carneola, "Cypraea (Lyncina) cf. arenosa" = Cypraea (Lyncina) schilderorum, Cypraea sp., "Erosaria (Ravitrona) helvola" = Cypraea (Erosaria) helvola
"Cypraea (Lyncina) cf. carneola" = Lyncina carneola Linnaeus 1758 purple-mouthed cowry
"Cypraea (Lyncina) cf. arenosa" = Cypraea (Lyncina) schilderorum Iredale 1939 cowry
Cypraea sp. Linnaeus 1758 cowry
"Erosaria (Ravitrona) helvola" = Cypraea (Erosaria) helvola Linnaeus 1758 cowry | |
Tibia sp. Röding 1798 true conch | |
Lyria rex volute | |
Mitra (Nebularia) cf. hanleyana mitre shell | |
Cantharus (Pollia) sp. Sowerby 1843 true whelk | |
"Angaria delphinus" = Delphinula delphinus, "Turbo petholatus" = Turbo (Turbo) petholatus, "Marmorostoma argyrostoma" = Turbo (Marmarostoma), Marmorostoma (Batillus) cf. cornuta
"Angaria delphinus" = Delphinula delphinus Linnaeus 1758 laciniated dolphin shell
"Turbo petholatus" = Turbo (Turbo) petholatus Linnaeus 1758 snail
"Marmorostoma argyrostoma" = Turbo (Marmarostoma) snail | |
Calliostoma (Tristicotrochus) nahaensis top snail | |
Haliotis cf. diversicolor abalone | |
Rhynchonellata | |
Gryphus hanzawai Yabe and Hatai 1935 | |
Kikaithyris hanzawai Yabe 1932
Pictothyris picta Dillwyn 1817 |