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Biostratigraphy of large benthic foraminifera from Hole U1468A (Maldives): A CT-scan taxonomic approach

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  • Giovanni Coletti
  • Stephanie Stainbank
  • Alessio Fabbrini
  • Silvia Spezzaferri
  • Anneleen Foubert
  • Dick Kroon
  • Christian Betzler

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Original languageEnglish
Pages (from-to)523-536
JournalSwiss journal of geosciences
Issue number3
Early online date5 Apr 2018
Publication statusPublished - Oct 2018


Large benthic foraminifera are important components of tropical shallow water carbonates. Their structure, developed to host algal symbionts, can be extremely elaborate and presents stratigraphically-significant evolutionary patterns. Therefore their distribution is important in biostratigraphy, especially in the Indo-Pacific area. To provide a reliable age model for two intervals of IODP Hole U1468A from the Maldives Inner-Sea, large benthic foraminifera have been studied with computed tomography. This technique provided 3D models ideal for biometric-based identifications, allowing the upper interval to be placed in the late middle-Miocene and the lower interval in the late Oligocene.

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