Where: Aichi, Japan (34.7° N, 137.0° E: paleocoordinates 38.3° N, 134.3° E)

• coordinate stated in text

When: Toyohama Formation (Morozaki Group), Burdigalian (20.4 - 16.0 Ma)

• Toyohama Forma- tion, Morozaki Group, lower Miocene, Burdigalian. The Toyohama Formation is correlated with the magnetic polarity zone C5Dr (18.056–17.533 Ma: Hilgen et al., 2012) (Hayashida, 1986; Ito et al., 1999). The Morozaki Group consists of Himaka, Toyohama, Yamami, and Utsumi Formations in ascending stratigraphic order (Kondo and Kimura, 1987). The holotype was found in the middle part of the Toyohama Formation (CERG, 1993). The Toyohama Formation is composed mainly of tuffaceous mudstone (Shibata, 1977).

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Primary reference: Chita-kujira Excavation Research Group. 1993. Odontocete fossils from the Miocene Morozaki Group, Chita Peninsula, Aichi Prefecture, Central Japan. Chikyu Kagaku 47(2):153-157 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 53881: authorized by Mark Uhen, entered by Mark Uhen on 15.09.2005

Creative Commons license: CC BY (attribution)