Blake, Gregg H (1981): (Table 2) Planktonic to benthic foraminifera ratios at DSDP Site 63-468 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.819169, Supplement to: Blake, GH (1981): Biostratigraphic implications of Neogene benthic foraminifers from Site 468, Southern California continental borderland: A preliminary study. In: Yeats, RS; Haq, BU; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 63, 437-444, https://doi.org/10.2973/dsdp.proc.63.110.1981