This report comprises a summary of the diatom biostratigraphy of the middle and lower Eocene biosiliceous section of Hole 605 (Cores 7-22), a presence/absence checklist of 25 common to abundant diatom taxa, and taxonomic references, notes, and illustrations of some of the more biostratigraphically significant diatom species discussed.

P = present, - = absent.

Supplement to: Gombos, Andrew M (1987): Middle Eocene diatoms from the North Atlantic, Deep Sea Drilling Project Site 605. In: van Hinte, JE; Wise, SW Jr; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 93, 793-799