937. AMYGDALOPHYLLOIDES (RUGOSA) FROM THE CARBONIFEROUS OF THE OMI LIMESTONE, CENTRAL JAPAN

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  • 937. 青海石灰岩の石炭系より産する Amygdalophylloides (四射サンゴ類)
  • 青海石灰岩の石炭系より産するAmygdalophylloides(四射サンゴ類)〔英文〕
  • オウミ セッカイガン ノ セキタンケイ ヨリ サンスル Amygdaloph

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Abstract

The Omi Limestone Group belonging to the Akiyoshi Terrane yields abundantly rugose coralline fossils of the genus Amygdalophylloides from its lower part. The assemblage of Amygdalophylloides obtained from the Fukugakuchi area where the lower sequence of the Omi Limestone Group is typically developed, comprises more than 10 forms, from which the following eight species, including five new species and two unidentified species, are herein described and illustrated : Amygdalophylloides densus, sp. nov., A. denticulatus, sp. nov., A. uzurensis (Yamagiwa and Ota), A. omiensis, sp. nov., A. longiseptatus, sp. nov., A. parvus, sp. nov., A. sp. A and A. sp. B. This coralline assemblage is of Namurian A to Namurian B, Serpukhovian to early early Bashkirian age, except for the occurrence of Amygdalophylloides sp. A referred to the late Visean age.

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