資料・解説
5万分の1地質図幅「豊橋」地域の秩父帯チャートから産するペルム紀放散虫化石
2004 年 55 巻 9-10 号 p. 287-301
詳細
2004 年 55 巻 9-10 号 p. 287-301
Permian radiolarians were detected from 30 samples of chert of the Chichibu Belt in Toyohashi district, Aichi Prefecture, Southwest Japan. 22 species belonging to 7 genera are identified,and are shown in plates with undescribed morphotypes as a database for further study. Based on Permian radiolarian biostratigraphy presented by Ishiga (1990) and Kuwahara et al. (1998), the geologic age of the examined chert samples ranges from Early Permian to Late Permian.
