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Three Upper Triassic species of Dipteridaceae are described. By new finds of twisted arms and fertile pinnae Dictyophyllum japonicum Yokoyama (1891) from the Yamanoi Formation (Upper Carnic to the Lowest Noric) is transferred to Camptopterisjaponica (Yokoyama) Kon'no, comb. nov. Morphological and taxonomical relation of Dictyophyllum falcatum Naito (MS.) from the Middle Carnic formation with other genera and species is discussed with additional data of fertile pinnae. CUxthropteris meniscoides Brongn. is described from near the south-western border of Sarawak; this gives evidence of the presence of the southernmost outpost of the Dipteridaceae flora of south-eastern Asia in Borneo during the Upper Triassic Period.
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Enzo Kon'no (1968) studied this question.
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