1989 Volume 98 Issue 2 Pages 164-173
As the result of recent advancements the history of the Japanese Islands is now trance-able as far back as the Ordovician age with reference to fossil evidence. The Palaeozoic history is followed by the Triassic and later history when the Akiyoshi and Sakawa folded mountains were built up and they were deformed after their creation in the succeeding part.