“…As noted above, our zones of innovation generally coincide with the refuge areas identified by Veth (1993), the culture-areas identified by Peterson (1976) and regional areas within the Panaramitee tradition (Franklin 2004(Franklin , 2007. Aggregation, an expression of bounding behaviour, would be expected in these refuge areas, and is evident in: Franklin's (2004Franklin's ( , 2007 Central Region within the Panaramitee tradition, where the greatest diversity in motifs occurs; the Dampier Archipelago in our Central Western Zone (Figure 2), where the high stylistic diversity in rock engravings supports its interpretation as a major aggrega- (Figure 2), dated to a minimum of 4,000 years BP based on age estimates for the extinction of the thylacine (Mulvaney 2009). However, these engravings may be considerably older than this as they are highly patinated and in an area where the rate of weathering and repatination of rock surfaces is slow, in the order of several thousands of years (Mulvaney 2009); the use of local sources for ochre at Puritjarra, central Australia, combined with a far more intensive use of the site and the initial production of pigment art between 13,000 BP and 7,500 BP, suggesting a contraction in territory and an increasing need to assert corporate rights and relationships to the site (Smith et al 1998); and the increasing levels of regionality through time, from the more homogeneous, Australia-wide Panaramitee tradition, to the proliferation of distinct and more figurative styles occupying spatially restricted areas from the terminal Pleistocene through the Holocene (Franklin 2004(Franklin , 2007.…”