NEW PROGRESS IN THE STUDY OF THE TRIASSIC IN NORTHWESTERN JIANGXI

The Jialingjiang Formation distributed in northwestern Jiangxi has long been assigned to the Middle Triassic though no adequate fossil data have been obtained. Jn the 1:50000 scale regional surveys the authors measured a stratigraphic section of the Jialingjiang Formation and divided the formation into four lithologic members according to the lithology. They for the first time collected conodont fossils: Neohindeodella cf. trassica, pachycladina cf. obiqua, P. cf. sanxiaensis, Hadrodontina sp., Lonchodina cf. hubeiensis and Fnrishiussp. The above-mentioned conodont general and species are all important elements of Olenekian （Warly Triassic） age. According to this, the authors consider that the Jialingjiang Formation should belong to a formation in the upper part of the Lower Triassic.