Where: Hokkaido, Japan (43.3° N, 143.8° E: paleocoordinates 44.6° N, 141.4° E)

• coordinate estimated from map

When: Lower Hard Shale Member (Morawan Formation), Chattian (28.1 - 23.0 Ma)

• early late Oligocene

Environment/lithology: marine; lithified shale

Size class: macrofossils

Preservation: original phosphate

Collection methods: surface (float),

Primary reference: N. Inuzuka. 2000. Primitive late Oligocene desmostylians from Japan and Phylogeny of the Desmostylia. Bulletin of the Ashoro Museum of Paleontology 1:91-123 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 58896: authorized by Mark Uhen, entered by Mark Uhen on 28.02.2006

Creative Commons license: CC BY (attribution)