Where: Hokkaido, Japan (43.3° N, 142.0° E: paleocoordinates 47.1° N, 135.1° E)

• coordinate based on nearby landmark

When: Horokabetsu Formation (Ishikari Group), Early/Lower Eocene (55.8 - 48.6 Ma)

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: A. Mizuno. 1954. On Two New Forms of PaleogeneGastropods from Hokkaido, Japan. Venus 18(2):101-108 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 205814: authorized by Mark Uhen, entered by Mark Uhen on 23.10.2019

Creative Commons license: CC BY (attribution)