Opriaushibets (Miocene of Japan)

Also known as Obirashibe, Obiracho, Obira-cho

Where: Teshio, Japan (44.0° N, 141.7° E: paleocoordinates 44.6° N, 140.0° E)

• coordinate based on political unit

When: Chikubetsu Formation, Miocene (23.0 - 5.3 Ma)

• contemporaneous with the Kawabata

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: H. Matsumoto. 1923. Mammalian horizons of the Japanese Tertiary: Revised stratigraphically and the interrelationship of the terrestrial and marine deposits. Proceedings of the Pan-Pacific Science Congress 2:887-896 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 151921: authorized by Mark Uhen, entered by Jenna David on 18.10.2013, edited by Mark Uhen

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Sorbeoconcha - Potamididae
Vicarya sp. d'Archiac and Haimes 1854 horn snail
Reptilia
 Testudines - Trionychidae
Trionyx desmostyli Matsumoto 1918 softshell turtle
Mammalia
 Perissodactyla - Desmostylidae
"Desmostylus cf. japonicus" = Desmostylus hesperus
"Desmostylus cf. japonicus" = Desmostylus hesperus Marsh 1888 desmostylian