石川・富山縣の新第三紀海膽
スポンサーリンク
概要
- 論文の詳細を見る
As a result of geological surveys in 1947 and 1948 the author ascertained that there were many species of fossil echinoids in the Neogene formations of Ishikawa and Toyama Prefectures., The author identified the eight genera, fifteen species and one subspecies : Cidaris sp., a, Cidaris sp., b, Clypeaster virescens Doderlein, Clypeaster sp., indet., Echinarachnius mirabilis (Agassiz), Echinarachnius mirabilis tenuis Yoshiwara, Echinarachnius microthyroides Nishiyama, Astriclypeus manni Verill, Echinolampas yosiwarai Loriol, Linthia nipponica Yoshiwara, Eupatagus (Brissoides) sp., Shizaster recticanalis Yosiwara, Schizaster sp.,., The author tried to show the stratigraphic horizons of the echinoid-bearing members by two standard sections., Besides, he described two new species of Echinarachnius, and indicated the localities and the associated fauna of each specimen.,
- 日本地質学会の論文
- 1950-04-05