Hole 1207A planktic foraminiferal biostratigraphy.

Semi-quantitative assemblage data of planktic foraminiferal species recorded at ODP Hole 1207A. Five categories of foraminiferal species abundance, relative to the total number of planktic foraminifera in each sample, were recorded: rare (<1%), few (1–5%), common (5–10%), abundant (10–30%), and dominant (>30%). Species ranges are highlighted in white, with those used as primary marker datums in the biostratigraphic zonation scheme denoted by blue. Biozones are denoted by solid horizontal black lines. (XLSX)