A new pleurotomariid gastropod assemblage from the Jurassic sequence of Kutch, western India

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概要

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• Mesozoic gastropod assemblages currently emerged from Kutch, western India constitute one of the most diverse communities known during the Bathonian-Oxfordian worldwide. The present paper describes part of the Jurassic gastropod faunas of the family Pleurotomariidae from Kutch, comprising ten species belonging to three genera, of which eight species are new. They are : Bathrotomaria reticulata (Sowerby), B. waageni sp. nov., B. calloviana sp. nov., B. buddhai sp. nov., B. prasantai sp. nov., B. dhosaen-sis sp. nov., B. tewarii (Maithani); Leptomaria daityai sp. nov.; L. asurai sp. nov. and Obornella wuerttem-bergensis (Sieberer). The assemblage shows a strong Tethyan affinity at generic level, but has a distinctly endemic species content, and thus merits a distinct subprovince within the Indo-Madagascan Faunal Province. The genus Pleurotomaria is discussed in historical perspective and shown to be Mesozoic genus. The six species of Bathrotomaria described herein are considered to have evolved from the early immigrant species, B. reticulata of Europe.

• 日本古生物学会の論文
• 2005-12-31

著者

• Kase Tomoki

  National Science Museum

• DAS SHILADRI

  Indian Statistical Institute, Geological Studies Unit

• BARDHAN SUBHENDU

  Department of Geological Sciences, Jadavpur University

• Das Shiladri

  Indian Statistical Institute Geological Studies Unit

• Bardhan Subhendu

  Department Of Geological Sciences Jadavpur University

• Kase Tomoki

  National Museum of Nature and Science, Tokyo

関連論文

• Changes in cavernicolous bivalve assemblages and environments within a submarine cave in the Okinawa Islands during the last 5,000 years
• A new pleurotomariid gastropod assemblage from the Jurassic sequence of Kutch, western India
• Kheraiceras Spath (Ammonoidea)-new forms and records from the Middle Jurassic sequence of the Indian Subcontinent
• The terebratulid Kutchithyris (Brachiopoda) from the Jurassic sequence of Kutch,western India-revisited
• The Late Bathonian gastropod fauna of Kutch, western India-a new assemblage
• The terebratulid Kutchithyris (Brachiopoda) from the Jurassic sequence of Kutch, western India-revisited
• Early Cretaceous Marine and Brackish-water Gastropoda from Japan
• In situ Calyptogena colonies from Pliocene back-arc basin fills in Leyte Island, Philippines

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