This paper presents a result of reexamination of rhinocerotid fossil foot prints from the Kobiwako Group and the Tokai Group around the west coast of Ise bay during Pliocene to Pleistocene. We confirmed that there are 32 occurrence points in the Kobiwako Group, and 13 points in the Tokai Group. The occurrence horizons dated 4.1-3.2 Ma, around 3 Ma, 2 .6-1.8 Ma and 0.85-0.5 Ma in the Kobiwako Group, and 3.5-2.9 Ma, 2.6-2.3 Ma, around 1.8 Ma and 1.6-1.4 Ma in the Tokai Group. Considering that the two adjacent Groups data complement each other, it is obvious that rhinocerotid inhabited at least 4.1-1.8 Ma, 1.6-1.4 Ma, and 0.85-0.5 Ma. The age of rhinocerotid inhabitation in the Japanese Islands has been unclear because of the small number of rhinoceros fossil teeth and bone so far. Our results indicate that rhinocerotid inhabited the Japanese Islands intermittently from the early Pliocene to the middle Pleistocene.
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