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Mid-Pliocene planktic foraminifer assemblage of the North Atlantic Ocean

January 1, 2007

The US Geological Survey Pliocene Research, Interpretation and Synoptic Mapping (PRISM) North Atlantic faunal data set provides a unique, temporally constrained perspective to document and evaluate the quantitative geographic distribution of key mid-Pliocene taxa. Planktic foraminifer census data from within the PRISM time slab (3.29 to 2.97 Ma) at thirteen sites in the North Atlantic Ocean have been analyzed. We have compiled Scanning Electron Micrographs for an atlas of mid-Pliocene assemblages from the North Atlantic with descriptions of each taxon to document the taxonomic concepts that accompany the PRISM data. In mid-Pliocene assemblages, the geographic distributions of extant taxa are similar to their present day distributions, although some are extended to the north. We use the distribution of extinct taxa to assess previous assumptions regarding environmental preferences.

Citation Information

Publication Year 2007
Title Mid-Pliocene planktic foraminifer assemblage of the North Atlantic Ocean
DOI 10.2113/gsmicropal.53.1-2.105
Authors H.J. Dowsett, M.M. Robinson
Publication Type Article
Publication Subtype Journal Article
Series Title Micropaleontology
Series Number
Index ID 70030844
Record Source USGS Publications Warehouse
USGS Organization