Abstract: Laffitteina (Marie, 1946) species are characteristic foraminifer as of Maastrichtian - Middle Paleocene units in Turkey. Laffitteina aff. marsicana Farinacci and Laffitteina marsicana Farinacci from upper part of Early Maastrichtian; up to Middle part of Late Maastrihtian Laffitteina oeztuerki İnan from middle part of Late Maastrichtian; Laffitteina boluensis Dizer from middle of Late Maastrihtian to end Danian; Laffitteina erki (Sirel) from middle part of Early Donion to middle part of Early Thanetian; Laffitteina cfmonodi Marie from middle part of Early Danian to end of Late Danian and Laffitteina bibensis Marie from Early Maastrichtian lastto end of Early Thanetian show stratigraphical distribution in Turkey. Laffitteina species are very important for transition of Cretaceous I Tertiary particulary in Eastern Pontids. Laffitteina`s are observed only in Maastrichtian levels in İlgaz and Beydağları (WAntalya) regions. On the other had (W Pont ids, Anatolids, Bolkardağ and Adıyaman regions), Laffitteina outcrops of Turkey are Paleocene in age.