※古生物学会会員の皆様はメンバーページ経由ですと 各論文のPDFもダウンロードできます(vol.7以降).それ以前の号は本ページもしくはJ-STAGEからどなたでも閲覧可能です.

Vol.22 Supplement

Maekawa, T., Komatsu, T. and Koike, T., 2018: Early Triassic Conodonts from the Tahogawa Member of the Taho Formation, Ehime Prefecture, Southwest Japan. Paleontological Research, 2018, 1-62. 10.2517/2018pr001. https://doi.org/10.2517/2018PR001

View abstract

The Triassic Taho Formation crops out in Taho, Shirokawa Town, Seiyo City, Ehime Prefecture, Southwest Japan. The formation is newly divided into the Tahogawa and Sakuragatouge members. The Tahogawa Member consists mainly of partly dolomitized light-, dark-, brownish-gray and black bedded limestones, and yields abundant Early to Middle Triassic conodonts, ammonoids, gastropods, bivalves, brachiopods and fish remains. The Sakuragatouge Member is dominated by brownish gray lenticular conglomeratic limestone and massive gray and white limestones that contain Middle to Late Triassic conodonts, gastropods, bivalves, echinoids and fish remains. In the Tahogawa Member, conodont assemblages are composed of 13 genera and 45 species, including three new species: Neospathodus arcus Maekawa sp. nov., Novispathodus shirokawai Maekawa sp. nov., and Nv. tahoensis Maekawa sp. nov. The member is divided into five conodont zones in ascending order: the Ns. dieneri Zone, the Ns. cristagalli Zone, the Nv. ex gr. waageni Zone, the Nv. pingdingshanensisZone and the Nv. brevissimus Zone. The Nv. ex gr. waageni Zone contains three conodont subzones (the Eurygnathodus costatus Subzone, the Guangxidella bransoni Subzone and the Scythogondolella milleri Subzone), and the Nv. brevissimus Zone includes the Icriospathodus collinsoni Subzone. The conodont biostratigraphy of the member indicates a late Dienerian to early Spathian age, and correlates with that of Tethyan and Panthalassean sections. The Induan-Olenekian boundary is indicated by the first occurrence of Nv. ex gr. waageni. The Smithian-Spathian boundary is immediately below or intercalated within the Nv. pingdingshanensis Zone.

<<英文誌「Paleotological Research」のページへ

<<Vol.22 No.4目次へ

会員登録情報の変更はお済みですか? 登録した会員情報(所属・住所・電話番号・ FAX番号・E-mailアドレス等)に変更が生じた場合は,会員専用ページか ら変更が可能です(2013年4月から開始).あるいは変更届をE-mail,Fax, 郵便にて 事務局 宛にご提出ください. 特に書式はございません.

サイトポリシー 当サイトに掲載されている写真や資料,情報などを引用,公開される場合は,事前に事務局までお知らせください.
当サイトへのリンクは自由です.連絡などは必要ありません.