@article{oai:tohoku.repo.nii.ac.jp:00012061, author = {Matsumoto, Tatsuro}, issue = {2}, journal = {The science reports of the Tohoku University. Second series, Geology = 東北大学理科報告. 地質学}, month = {Nov}, note = {application/pdf, Cretaceous ammonites from South Sakhalin held at the Institute of Geology and Paleontology, Tohoku University. Sendai are described. Among the 15 species, 12 are of Maastrichtian and/or Campanian age. Very few of the specimens from the late Dr. Saburo Shimizu's Collection are outstanding and the majority of the material for his 1935a work in Shanghai is regrettably missing., 紀要類(bulletin), 2763851 bytes}, pages = {177--A59}, title = {Notes on Some Cretaceous Ammonites from South Sakhalin Held at Tohoku University, Sendai}, volume = {59}, year = {1988} }