Marine and non-marine sediments of Paleocene to Pliocene age are represented in South Australia, although parts of the sequence are known only from subsurface sections. The Tertiary sequence is most complete in the Murray Basin, where Hantkenina alabamensis compressa occurs near the top of the Eocene and the evolutionary series Globigerinoides triloba - Orbulina universa occurs in the Miocene. Three members with distinctive molluscan faunas occur in the so called Pliocene of the Adelaide Plains Basin. Charts are given showing the sequence of key foraminiferal faunas throughout the Tertiary and of the vertical distribution of mollusca in the "Pliocene" sediments west of Adelaide. A table is given showing the correlation of all known formations of Tertiary age.