Abstract
A Permian fusulinoidean fauna, described from the Takagami Conglomerate of the Atagoyama Formation in the Choshi area, central Japan and consisting of 15 species in 10 genera, is taxonomically restudied and compared with those of the South Kitakami Belt (South Kitakami Mountains) and the Kurosegawa Belt (central Kyushu). Consequently the Choshi fauna resembles the Permian fusulinoidean faunas from both the South Kitakami and Kurosegawa Belts, although it is closer to the latter than the former. This result suggests a tectonic continuity between the South Kitakami Belt and the Kurosegawa Belt. The Upper Permian Atagoyama Formation and the unconformably overlying Lower Cretaceous Choshi Group in the Choshi area belong to the Kurosegawa Belt in the Kanto Mountains, and they are located at about the middle of the continuous South Kitakami-Kurosegawa Belt.
