About MOTOYAMA ISAO
About MARUYAMA TOSHIAKI
About IGARASHI MIO
About EGUCHI MIZUKI
About SUTO MEGUMI
About SUZUKI MASAFUMI
About Hokkaido
About Radiolaria
About Bacillariophyceae
About Miocene Epoch
About animal fossil
About plant fossil
About stratigraphic correlation
About biostratigraphy
About sandstone
About incommensurability
About Tertiary
About 北海道
About 能取湖
About 上部中新統
About 放散虫
About 珪藻
About 化石層序