Abstract
Late Devonian brachiopod Cyrtospirifer and lepidodendroid plant Leptophloeum are newly recorded from the Hida Gaien Belt, central Japan. The fossils, collected from light green acidic tuff of the upper part of the Rosse Formation in the Moribu area, Hida Gaien Belt, are named as and identified as Cyrtospirifer sp. A, Cyrtospirifer sp. B and Leptophloeum rhombicum Dawson. From the fossil evidence, the upper part of the Rosse Formation is clearly correlated with the Upper Devonian. In common with both the South Kitakami and Kurosegawa Belts, the Hida Gaien Belt is characterized by the presence of pyroclastic and clastic Upper Devonian units containing Cyrtospirifer and Leptophloeum. The above three belts were probably connected biogeographically and also geographically with the eastern Kazakhstan-northern Xinjiang-Inner Mongolia region in the Late Devonian time.
