Also known as Annaka
Where: Gunma, Japan (36.3° N, 138.9° E: paleocoordinates 37.9° N, 137.1° E)
• coordinate estimated from map
When: Haraichi Formation (Tomioka Group), Tortonian (11.6 - 7.2 Ma)
• Hasegawa and Kimura (2008) place this at about 11.29 Ma based on ash dates.
•Kimura et al. (20006) state that this locality is approximately 11.5 Ma, which makes it late Serravalian.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Primary reference: T. Kimura and Y. Hasegawa. 2004. An outline of the Miocene cetotheres of Japan. Bulletin of the Gunma Museum of Natural History 8:79-88 [M. Uhen/M. Uhen]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 56950: authorized by Mark Uhen, entered by Mark Uhen on 29.11.2005
Creative Commons license: CC BY (attribution)