Early Permian (Cisuralian) ostracods from Japan: Characteristic ostracod assemblage from a seamount of the Panthalassic Ocean

Gengo Tanaka, Yukio Miyake, Teruo Ono, Aihua Yuan, Masahiro Ichida, Haruyoshi Maeda, Sylvie Crasquin

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

Silicified ostracods were recovered from Cisuralian micritic limestones of the Ryozensan Limestone Formation from the southwestern part of Ryozensan Mountain, Taga City located in Shiga Prefecture, Central Japan. Twenty-seven species belonging to 19 genera were obtained, of which six species are new and are described here: Bairdia tagaensis Tanaka sp. nov., Bairdiacypris ikeyanoriyukii Tanaka sp. nov., Kellettina noriyukii Tanaka sp. nov., Microcheilinella shigensis Tanaka sp. nov., Oliganisus ryozensannensis Tanaka sp. nov., and Pustulobairdia ohmiensis Tanaka sp. nov. Some Palaeozoic limestone localities in Japan cap greenstones and are surrounded by younger cherts (such as Mino Terrane of this study). They represent a characteristic reef and reef-slope environment around a seamount surrounded by deep sea ocean floor. This result is concordant with the ostracod assemblage. After this report, a Panthalassan ostracod fauna could be defined for the Cisuralian.

本文言語英語
ページ(範囲)1-67
ページ数67
ジャーナルZootaxa
4515
1
DOI
出版ステータス出版済み - 11 12 2018

All Science Journal Classification (ASJC) codes

  • 生態、進化、行動および分類学
  • 動物科学および動物学

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