Pliocaenicus nipponicus sp. nov., a new freshwater fossil diatom from central Japan

• Tanaka Hiroyuki

  Chuo Senior High School

• Nagumo Tamotsu

  Department of Biology, The Nippon Dental University

書誌事項

タイトル別名

• <I>Pliocaenicus nipponicus</I> sp0 nov., a new freshwater fossil diatom from central Japan

抄録

Pliocaenicus nipponicus sp. nov. is d e scribed from a Pliocene freshwater diatomite of the Kabutoiwa Formation in Gunma Prefecture, central Japan. The species is characterized by wide mantle interstriae with fultoportula openings on the lower part and an external ligula-like segment covering the valvocopula slit. Internally, each costa has a mantle fultoportula, and both mantle fultoportulae and valve face fultoportulae have two satellite pores. The new species is compared to similar species of Pliocaenicus: p costatus (Lupikina)Flower et al. (sensu lato), P. jilinensis G. Wang and P. omarensis (Kuptseva) Round et Håk. Observations of the external ligula-like segment have been included as recent research suggests its usefulness as an identifying characteristic.

収録刊行物

• Diatom

  Diatom 20 (0), 105-111, 2004

  The Japanese Society of Diatomology

キーワード

• freshwater fossil diatom
• Kabutoiwa Formation
• Gunma
• Japan
• new species
• <I>Pliocaenicus nipponicus</I>
• Pliocene

詳細情報

• CRID: 1390282680399997696
• NII論文ID: 10014394908
• NII書誌ID: AA11130739
• DOI: 10.11464/diatom1985.20.0_105
• NDL書誌ID: 7239483
• ISSN: 09119310
• Web Site: http://id.ndl.go.jp/bib/7239483
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7239483
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可