The Pliocene-Pleistocene sections at ODP sites 762B and 763A from the Exmouth Plateau (eastern Indian Ocean) were examined to assess the biostratigraphic significance of the benthic foraminifera. The benthic foraminiferal assemblages at both the sites are characteristic of bathyal depths. Based on the stratigraphic ranges of significant taxa, four benthic foraminiferal biozones have been proposed. The proposed biozones in ascending order are Hofkeruva nitidula Zone (>6.6 to approximately 4.72 Ma); Biloculina murrhina Zone ( approximately 4.72 to approximately 1.8 Ma); Ceratobulimina pacifica-Stilostomella insecta overlap Zone ( approximately 1.8 to approximately 0.82 Ma) and Ceratobulimina pacifica Zone ( approximately 0.82 Ma to Recent). The lower and upper boundaries of the Biloculina murrhina Zone are defined by the last appearance of Hofkeruva nitidula (Schwager) and first appearance of Ceratobulimina pacifica Cushman and Harris respectively. The base of Ceratobulimina pacifica Zone is defined by the last appearance of Stilostomella insecta (Schwager).

West: 112.1514 East: 112.1514 North: 20.3511 South: 19.5314

Expedition: 122

Site: 122-762

Site: 122-763

Provider: SEDIS Publication Catalogue

Data set link: http://sedis.iodp.org/pub-catalogue/index.php?id=2005-014675 (c.f. for more detailed metadata)

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