Appendix 1. List of molluscan fossils of the Tatsukobu and Tsubetsu Formations. Tatsukobu Formation: LT-Lower Hard Shale Member,
MT-Sandy Siltstone Member, UT-Upper Hard Shale Member; Tsubetsu Formation: BS-Fine Sandstone Member, LS-Conglomeratic Sandstone Member and Hard Shale Member, S-Siltstone Member r-rare (1-5), F-a few (5-10), c-common (>10); ?-cf.
journal or
publication title
The science reports of the Tohoku University. Second series, Geology
volume 63
number 2
year 1996-07-25