Where: Hokkaido, Japan (43.0° N, 143.6° E: paleocoordinates 47.4° N, 135.8° E)

• coordinate estimated from map

When: Katsuhira Formation, Selandian to Selandian (61.6 - 56.0 Ma)

• upper Selandian to lowest Thanetian Katsuhira Formation

Environment/lithology: basinal (siliceous); lithology not reported

Size class: macrofossils

Primary reference: K. Amano, K. Hryniewicz, and R. G. Jenkins. 2018. A newly discovered Paleocene species of Boreocomitas (Gastropoda: Pseudomelatomidae) from eastern Hokkaido, Japan, with implications for the biogeography of the Paleocene Bering Strait. The Nautilus 132(3-4):117-123 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 206290: authorized by Mark Uhen, entered by Mark Uhen on 08.11.2019

Creative Commons license: CC BY (attribution)