Systematic taxonomy of early-middle Miocene planktonic Foraminifera from the Equatorial Pacific Ocean; integrated Ocean Drilling Program, Site U1338

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doi: 10.2113/gsjfr.43.4.374
Author(s): Fox, Lyndsey R.; Wade, Bridget S.
Author Affiliation(s): Primary:
University of Leeds, School of Earth and Environment, Leeds, United Kingdom
Volume Title: Journal of Foraminiferal Research
Source: Journal of Foraminiferal Research, 43(4), p.374-405. Publisher: Cushman Foundation for Foraminiferal Research, Ithaca, NY, United States. ISSN: 0096-1191 CODEN: JFARAH
Note: In English. NSF Grant OCE-0352500. 75 refs.; illus., incl. 1 table, sketch map
Summary: Integrated Ocean Drilling Program Expedition 320/321 at Site U1338 (equatorial Pacific Ocean) recovered lower-middle Miocene (17-13.5 Myr) sediments containing unusually well-preserved and diverse planktonic foraminifera. Previous taxonomic study of planktonic foraminifera from this interval in the eastern Pacific Ocean has been hindered by the absence of biogenic carbonate. Here we present a taxonomic analysis of these foraminifera, including wall textures and species variability, supported by scanning electron micrographs. Specimens exhibit open pore spaces, little evidence of calcitic overgrowth on the wall surface, and in many cases spines. Fifty-five species are recorded, including Dentoglobigerina juxtabinaiensis n. sp. Dominant genera include Paragloborotalia and Globigerinoides with common Dentoglobigerina.
Year of Publication: 2013
Research Program: IODP Integrated Ocean Drilling Program
Key Words: 10 Paleontology, Invertebrate; Biodiversity; Cenozoic; Dentoglobigerina juxtabinaiensis; East Pacific; Equatorial Pacific; Expedition 321; Expeditions 320/321; Faunal studies; Foraminifera; IODP Site U1338; Integrated Ocean Drilling Program; Invertebrata; Microfossils; Miocene; Morphology; Neogene; New taxa; North Pacific; Northeast Pacific; Pacific Ocean; Planktonic taxa; Preservation; Protista; SEM data; Taxonomy; Tertiary
Coordinates: N023028 N023028 W1175811 W1175811
Record ID: 2013088919
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute. Abstract, Copyright, Cushman Foundation for Foraminiferal Research, Reference includes data from GeoScienceWorld, Alexandria, VA, United States