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Kase, T.; Kurihara, Y.; Tomida, S.; Tanabe, M.; Yamaoka, T.; Ichihashi, Y.; Ohzawa, H.; Takaizumi, Y. (2022). Revision of four species of Turbo (Marmarostoma) (Gastropoda: Turbinidae) from the Lower-Middle Miocene of Japan. Paleontological Research. 27(2): 131-146.