Twenty two outcrop sections were sampled in arder to present the benthic and planktonic foraminiferal species from Paleogene, deep water deposits. The sections studied were derived from the Voirons massif, Subalpine chains, Chablais Prealpine front and Thônes syncline in the Haute-Savoie of France. Two supplementary sections were studied in the Romand Prealpine front for comparative faunal analyses. An outline of the paleoecological parameters interpreted, including dissolved oxygen levels, salinity levels, carbonate and silica availability, temperature and energy, substrate and bathymetry, is presented, illustrating the use of both planktonic and benthic foraminifers in obtaining the paleoenvironmental conditions on Paleogene deep water deposits. The paleoecology and biostratigraphy of the studied sections were interpreted using modem foraminiferal taxonomie and biostratigraphic concepts. […]