Designation of the type section of the tetori group and redefinition of the kuzuryu group, distributed in central Japan

Recent stratigraphic reviews suggested that the Kuzuryu Subgroup should be excluded from the Tetori Group (sensu lato), as in the original definition of the group by Oishi (1933b). Here, we redefine the Tetori Group following Oishi’ s (1933b) definition and designate the Itoshiro area in the Kuzuryu region, Fukui Prefecture, the Hakusan Geological Region, central Japan as the type section. We also propose a definition of the Kuzuryu Group involving some modification of Maeda’s (1961) Kuzuryu Subgroup.