Problematic Occurrence of the Upper Triassic Fossils from the Western Hills of Kyoto

Abstract

The presence of an upper Triassic (probably Karnian) bed in the midst of the Mino-Tamba Belt in the Kinki District is confirmed by examining Halobia and conodont fossils from the western hills of Kyoto. Although the occurrence of these fossils is somewhat problematic geologically, the upper Triassic bed may be considered to have been shut in the Permian formations by fault. Reviewing the other occurrences of the Triassic fossils from the Mino-Tamba Belt, some considerations on the paleogeographical situation of this belt are made, along with a description of five species of Halobia.