1) The Yamamba limestone in Sakawa basin, Prov., Tosa, used to be considered of the Upper Tr assic age, contains the Upper Paleozoic byrozoans, brachiopods, and fusulinids., 2) The Higashi-nakayama bed in Prov., Nagato, the Hegi bed in Prov., Tamba, the Kuruma bed in Prov., Shinano and the lower and middle parts of the Shizukawa series (s., str., ) can be correlated to one another through the molluscan assemblage, notbly by Pecten, Trigonia, Cardinia, Cyrona (?) and others., The age of the fauna is suggested by Isocrinus, Anobacia, Cardinia, and so on., Since an unconformity is observed in Prov., Rikuzen and Prov., Nagato between the early Liassic beds and Pseudomonotis ochotica bearing beds, the boundary between the Jurassic and Triassic formations in Japan should be drawn between the two and in both of these beds the Mine flora is destributed., 3) In the Tetori series in Prov., Etchu is found a seymovrites, an indicator of the Arctic Callovian fauna., 4) Through the restudy on the holotype Harpoccras japonicum is determined to be a Haugia and, neither a Trachypleuraspidites nor Harpoceras as once referred by some paleontologists., 5) judging from the following assemblage of the genera, the Torinosu fauna reveals the close affinity to the Mediterranian Pseudosaccocoma japonica, n., sp., Periphinctes (Aula osphincoides?) sp., Lithacoceras torodaense, n., sp., Horioceras mitodaense, n., sp., Sigaloceras sp., Hecticoceras sp., Properisphinctes aff., bernensis (P., de Loriol)
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