ammonites
Koganezawa (Miocene of Japan)

Also known as Kogane

Where: Saitama, Japan (35.8° N, 140.0° E: paleocoordinates 39.6° N, 137.4° E)

• coordinate estimated from map

When: Tomita Member (Ushikubitoge Formation), Burdigalian (20.4 - 16.0 Ma)

• Tomita Siltstone

Environment/lithology: marine; siltstone

Primary reference: H. Saegusa. 2002. A partial skeleton of Paleoparadoxia from San-yama, Ogano-cho, Saitama Prefecture, central Japan. Nature and Human Activities 7:1-25 [M. Uhen/M. Uhen] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 91601: authorized by Mark Uhen, entered by Mark Uhen on 05.10.2009