About SAITO MEGUMI
About Quaternary Period
About lake
About Shiga prefecture
About organic evolution
About plant fossil
About velocity
About Paleontology
About morphology
About geographical distribution
About ecological succession
About vegetation
About Lake Biwa
About Bacillariophyta
About vegetation succession
About algae
About Cryptogamae
About Bacillariophyceae
About Stephanodiscus suzukii
About vegetation change
About evolution rate
About Cenozoic
About 第四紀
About 湖沼
About 珪藻
About 形態学
About 進化
About 地理的分布
About 琵琶湖