Abstract
In 1938, Basil Cooke published the first stratigraphic assessment of the Sterkfontein Australopithecus site. Since then, excavations have provided ever-broader and deeper insights into the complex stratigraphy of the site. A brief review of past stratigraphic assessments is here provided together with the latest stratigraphic information on the oldest deposits that are associated with a virtually complete Australopithecus skeleton (StW 573).