Urasawa (Pliocene of Japan)

Where: Nagano, Japan (36.6° N, 138.1° E: paleocoordinates 37.3° N, 137.3° E)

• coordinate estimated from map

When: Joshita Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: N. Kohno, K. Narita, and H. Koike. 1998. An early Pliocene odobenid (Mammalia: Carnivora) from the Joshita Formation, Nagano Prefecture, central Japan. Shinshūshinmachi kaseki hakubutsukan kenkyū hōkoku 1:1-7 [M. Uhen/N. Labell/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 156221: authorized by Melanie Hopkins, entered by Shaun Mahmood on 12.05.2014, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Proboscidea - Elephantidae
 Carnivora - Odobenidae
"Alachtherium sp." = Ontocetus
"Alachtherium sp." = Ontocetus Leidy 1859 walrus
 Cetacea - Balaenopteridae
Balaenopteridae indet. Gray 1864 rorqual