Where: Japan (33.6° N, 130.3° E: paleocoordinates 40.0° N, 126.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Meinohama Group, Rupelian (33.9 - 28.1 Ma)

• STRATIGRAPHIC RELATIONS: From the Meinohama Sandstone, at the base of the Ashiya Group. AGE: Oligocene. Early Tsukushian local stage. The Meinohama Sandstone (or Formation, or Group) is correlative with the Kishima Group and the lowest part of the Ashiya Group. The Ashiya Group corresponds to Zones P21-"N4" of Blow's scale of planktonic foraminifera (Saito & Okada, 1984; Tsuchi et al., 1987) and Zones CP18-CP19b of calcareous nannoplankton (Okada & Bukry, 1980). The fission track age of the bottom of the Yamaga Formation is about 32 Ma (Ozaki & Hamasaki, 1991). Okada (1992) showed that the Yamaga and Sakamizu Formations were assigned to Zone CP19a (latest Rupelian-early Chattian) of calcareous nannoplankton. Miyachi & Sakai (1991) obtained fission track ages of 33.9 Ma for the Sari Formation, the second-lowest in the Kishima Group, consistent with nannoplankton biostratigraphy suggesting a CP16a zone for the underlying Kishima Formation (Okada, 1992). Together, the evidence suggests a Rupelian age for the Meinohama Group. STRATIGRAPHIC POSITION: From unknown position within formation.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified sandstone

Size class: macrofossils

Preservation: mold/impression

Collected by Matsushita

Collection methods: surface (in situ),

• COLLECTOR: H. Matsushita (Kyushu University). REPOSITORY: Unknown/

Primary reference: T. Kobayashi. 1954. A new cymatoceratid from the Palaeogene of northern Kyushu in Japan. Japanese Journal of Geology and Geography 24:15-21 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81199: authorized by Austin Hendy, entered by Austin Hendy on 10.06.2008

Creative Commons license: CC BY (attribution)