Ichibangawa River (Miocene of Japan)

Where: Hokkaido, Japan (43.4° N, 141.6° E: paleocoordinates 43.8° N, 140.3° E)

• coordinate stated in text

When: Ichibangawa Formation, Tortonian (11.6 - 7.2 Ma)

• late middle to early late Miocene, approximately 12 to 10 Ma

•age after Magallanes et al., 2018

Environment/lithology: marine; lithified, coarse-grained, green sandstone

• weathered, dark green, coarse-grained, massive hard sandstone

Size class: macrofossils

Preservation: original phosphate

Primary reference: N. Kohno. 2006. A new Miocene odobenid (Mammalia: Carnivora) from Hokkaido, Japan, and its implications for odobenid phylogeny. Journal of Vertebrate Paleontology 26(2):411-421 [M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 61742: authorized by Mark Uhen, entered by Mark Uhen on 27.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

 Carnivora - Odobenidae
Pseudotaria muramotoi n. gen. n. sp.
Pseudotaria muramotoi n. gen. n. sp. Kohno 2006 walrus