Abstract
This is the fourth of our serial papers on the early Jurassic plants in Japan. In this paper we describe Ctenozamites sarrani belonging to Pteridospermales, and Anomozamites sp. A, Otozamites fujimotoi, O. neiridaniensis sp. nov., Pterophyllum ex gr. propinquum, P. sp. A, Ptilophyllum cfr. cutchense, P. nipponicum sp. nov., P. shinadaniense sp. nov., P. sp. A. and P. sp. B, all belonging to Bennettitales. The occurrence of Ctenozamites and Ptilophyllum is the first record not only in the early Jurassic flora but also in the older Mesozoic floras in Japan.
