Where: Japan (33.1° N, 130.5° E: paleocoordinates 40.2° N, 124.9° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Manda Group, Bartonian (41.3 - 38.0 Ma)

• According to Mizuno (1962, 1964), the Manda Group is correlated with the Okinoshiman stage, set chronologically by Ozaki et al. (1991) and Mizuno (1992) in the late Middle Eocene (Bartonian).

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, gray, green sandstone

Size class: macrofossils

Collected in 1897-1904

Primary reference: M. Yokoyama. 1911. Some Tertiary fossils from the Miike coal-field. Journal of the College of Science, Imperial University, Tokyo 27:1-16 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 179899: authorized by Matthew Clapham, entered by Matthew Clapham on 03.07.2016

Creative Commons license: CC BY (attribution)