@article{oai:niigata-u.repo.nii.ac.jp:00006791, author = {Sato, Shizuru and Matsuoka, Atsushi}, journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)}, month = {Oct}, note = {The 2nd International Symposium on Earth History of Asia 31 October – 3 November, Niigata, Japan}, pages = {77--78}, title = {Geology and mollusks of the Early Cretaceous Koyamada Formation, Somanakamura Group, Fukushima Prefecture, Northeast Japan}, volume = {29(Supplement)}, year = {2014} }