@article{oai:tsukuba.repo.nii.ac.jp:00024989, author = {Ogasawara, Kenshiro}, journal = {Earth Evolution Sciences University of Tsukuba}, month = {Jan}, pages = {3--24}, title = { Miocene mollusca from the Tachikaraushinai Formation, northern Hokkaido, Japan}, volume = {5}, year = {2011} }