About ASATO Kaito
About Univ. Tsukuba, Ibaraki, JPN
About KASE Tomoki
About National Museum of Nature and Sci., Ibaraki, JPN
About ONO Teruo
About SASHIDA Katsuo
About Univ. Tsukuba, Ibaraki, JPN
About AGEMATSU Sachiko
About Univ. Tsukuba, Ibaraki, JPN
About Paleontological Research
About limestone (rock)
About Bivalvia
About description of fossil
About new species
About paleoecology
About Gifu Prefecture
About animal fossil
About morphology (form)
About Phylogeny
About Permian Period
About invertebrate
About Permian Period
About Shikamaia属
About 赤坂石灰岩
About Paleozoic
About 日本
About ペルム紀
About 二枚貝
About 形態学
About 系統学
About 古生態学