Nosoko Fm, Nobaru-zaki, Ishigaki-shima - Foster (1965) (Oligocene of Japan)

Also known as Nosoko Fm, Nobaru-zaki

Where: Ryukyu, Japan (24.5° N, 124.3° E: paleocoordinates 28.1° N, 123.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nosoko Formation, Early/Lower Oligocene (33.9 - 28.4 Ma)

• From green tuff. The Nosoko Formation rest conformably on the Miyara Formation on the Yarabu Peninsula. Affinities of the Chlamys suggests an early Oligocene age, which the formation spans, although foram and coral evidence could suggst a late Eocene age.

• bed-level stratigraphic resolution

Environment/lithology: coastal; green tuff

• From the base of a green tuff-breccia, which, in its lower part, is somewhat conglomeratic and contains calcaerous nodules.

Size class: macrofossils

Reposited in the USNM

• Collections probably reposited in USGS and USNM

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 41592: authorized by Austin Hendy, entered by Austin Hendy on 17.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Foraminfera mentioned to be present.
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Bivalvia
 Pectinida - Pectinoidae
Chlamys sp.
Chlamys sp. Röding 1798 scallop
Has affinity with C. satoi and C> sakitoensis