Where: Chiba, Japan (35.4° N, 140.0° E: paleocoordinates 35.4° N, 140.0° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Kiyokawa Formation (Shimosa Group), Middle Pleistocene (0.8 - 0.1 Ma)
• "A tephra marker bed from the lowermost part of the Kiyokawa Formation, Ky2, is correlated with TB7, another tephra bed from the Oiso district of Kanagawa Prefecture, which is estimated as 225 G24 Ka by the fission track dating method (Nakazato et al.,
•2004; Okazaki et al., 2004a)." (Hirayama et al. 2007)
Environment/lithology: pond; mudstone and siltstone
Size class: macrofossils
Reposited in the BMNH, MNHN
• CBM-PV - Natural History Museum & Institute, Chiba, Japan
•NSM - National Science Museum, Tokyo, Japan
Primary reference: R. Hirayama, N. Kaneko, and H. Okazaki. 2007. Ocadia nipponica, a new species of aquatic turtle (Testudines: Testudinoidea: Geoemydidae) from the Middle Pleistocene of Chiba Prefecture, central Japan. Paleontological Research 11(1):1-19 [A. Dunhill/B. Allen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 198611: authorized by Alex Dunhill, entered by Bethany Allen on 28.12.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Mauremys yabei, Ocadia nipponica n. sp.
Ocadia nipponica n. sp. Hirayama et al. 2007 turtle CBM-PV 686 (holotype), nearly complete skeleton including skull, lower jaw, much of appendicular skeleton and shell; Unit C1
| |
Mammalia | |
Palaeoloxodon naumanni Makiyama 1924 elephant | |
Cervus nippon Temminck 1838 deer | |
Bivalvia | |
|