(Table T1) Biostratigraphy of selected taxa from ODP Hole 183-1138A sediments

Sediment depth is given in mbsf. Only specimens >45 µm were examined at magnifications between 100x and 640x. Abundance estimates as follows: A = abundant, C = common, F = few, R = rare, - = not observed in the sample, X = species exists on the slide but abundance was not noted. 1 = exactly one specimen found. sl = sensu latu, ss = sensu strictu, ? = uncertainty or difficulty in recognition of specimens (poor preservation, unusual morphology, or not clearly defined species).