Outcrop of elephant's footprint fossils at the time of investigation Many footprint fossils of Proboscidea were occurred in the Lower Pleistocene Okui Formation in the Komoro Group at the Chikuma River in the Saku Basin, Nagano Prefecture. The trackmaker was most likely Stegodon aurorae (Matsumoto). The white papers were put on the footprint fossils as a mark. The Okui Formation is major stratums where a lot of body fossils of Stegodon aurorae were found in Japan. (Hideaki Nagamori, Hiroaki Yoshikawa, Koji Hatakeyama, Masumi Terao,Tomotaka Tanabe) |