Where: Okinawa, Japan (26.1° N, 127.7° E: paleocoordinates 26.2° N, 127.6° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Chinen Formation (Ryukyu Group), Calabrian (1.8 - 0.8 Ma)
• Chinen sand belongs to calcareous nannoplankton zone CN13a and planktonic foram zone N22 (UjiiĆ©, 1994), indicating a Calabrian age.
• bed-level stratigraphic resolution
Environment/lithology: marine; fine-grained, gray, silty sandstone
Size class: macrofossils
Collected by Raymond A. Saplis; 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 190264: authorized by Matthew Clapham, entered by Matthew Clapham on 03.12.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
"Gryphus stearnsi" = Dolichozygus stearnsi
"Gryphus stearnsi" = Dolichozygus stearnsi Dall and Pilsbry 1891 |