Kobayashi, F. (2006). Middle Permian foraminifers of the Izuru and Nabeyama Formations in the Kuzu area, central Japan Part 2. Schubertellid and ozawainellid fusulinoideans, and non-fusulinoidean foraminifers. Paleontological Research. 10(1): 61-77.
Middle Permian foraminifers of the Izuru and Nabeyama Formations in the Kuzu area, central Japan Part 2. Schubertellid and ozawainellid fusulinoideans, and non-fusulinoidean foraminifers