Patiayam is a Pleistocene site which rich of paleontological remains. Based on the result, we know the diversity of Patiayam fauna that lived on the site. Unfortunately, most of the fossils found by local people are surface find. Thus, it is difficult to trace the age of these fossils. This article attempts to answer these problems by conducting contextual studies of faunal fossil in Patiayam to determine its relative age based on the contextual position of their rock formations, and to put their position in the history of presence and extinction of fauna (biostratigraphy) in Pleistocene time. The result suggests that Patiayam fauna is located between Cisaat group to Kedungbrubus group. It records the history of environmental change and faunal inhabitant from 1.2 to 0.8 million years ago. This perspective is useful to enrich our understanding of the quarternary prehistory of Java, especially in the isolated site as Patiayam.