Early Triassic Neospathodus (Conodonta) apparatuses from the Taho Formation, southwest Japan

• KOIKE Toshio

  Yokohama City

抄録

Two conodont apparatuses, Neospathodus symmetricus Orchard, 1995 and N. chionensis (Bender, 1967) are reconstructed on the basis of the material from the Spathian (Lower Triassic) limestone in the Taho Formation of Ehime Prefecture, southwest Japan. The Neospathodus apparatuses are composed of eight types of elements: digyrate (cypridodelliform) M, alate S₀, digyrate (enantiognathiform) S₁, di gyrate (grodelliform) S₂, bipennate S_3/4, angulate P₂, and segminate P₁ elements. This apparatus structure is the same as that for Neogondolella and is comparable to the standard 15-element plan of the Carboniferous ozarkodinids.

収録刊行物

• Ｐａｌｅｏｎｔｏｌｏｇｉｃａｌ　Ｒｅｓｅａｒｃｈ

  Ｐａｌｅｏｎｔｏｌｏｇｉｃａｌ　Ｒｅｓｅａｒｃｈ 8 (2), 129-140, 2004

  日本古生物学会

キーワード

• Gondolellidae
• multielements
• <i>Neospathodus</i>
• Taho Formation
• Triassic

詳細情報

• CRID: 1390001204086925440
• NII論文ID: 110002664629
• NII書誌ID: AA11137385
• DOI: 10.2517/prpsj.8.129
• ISSN: 18800068
• ISSN: 13428144
• NDL書誌ID: 7051840
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7051840
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可