Where: Okinawa, Japan (26.2° N, 127.8° E: paleocoordinates 26.2° N, 127.7° 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).
• group of beds-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 F. 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 42304: 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 | |
Calcar sp. Montfort 1810 snail
Bolma cf. pseudomolesta snail | |
Calliostoma (Pulchrastele) ikebei top snail | |
Rhynchonellata | |
Pictothyris picta Dillwyn 1817
Jolonica ryukyuensis Yabe and Hatai 1935 | |
Terebratulina subcarinata Cooper 1957 |