Where: Ibaraki, Japan (36.4° N, 140.5° E: paleocoordinates 38.9° N, 138.1° E)

• coordinate estimated from map

When: Lower Member (Mito Formation), Serravallian (13.8 - 11.6 Ma)

• late Middle Miocene, approximately 12.0-13,6 Ma

• member-level stratigraphic resolution

Environment/lithology: marine; fine-grained, tuffaceous, gray, blue sandstone

Size class: macrofossils

Primary reference: N. Kohno. 1996. Miocene pinniped Allodesmus (Mammalia: Carnivora); with special reference to the "Mito seal" from Ibaraki Prefecture, Central Japan. Transactions and Proceedings of the Palaeontological Society of Japan, New Series 181:388-404 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 101978: authorized by Mark Uhen, entered by Mark Uhen on 06.01.2011

Creative Commons license: CC BY (attribution)