“…Continent-wide studies of backed artefacts show regional distinctions in shape, no matter what their material, indicating that raw material is not creating those large-scale differences (Hiscock & Maloney, 2016). Similarly, function has limited explanatory power with regards to backed Archaeology in Oceania 215 artefacts, as both wear features and residues give evidence that backed artefacts were used as craft tools that worked multiple materials in multiple ways (Attenbrow et al, 2009;Boot, 1993;Robertson et al, 2009Robertson et al, , 2019Robertson & Attenbrow, 2008). In addition, non-backed artefacts, formerly called "scrapers", have also been shown to have been used for a similar range of functions as backed artefacts from the same sites (Robertson et al, 2019), soundly decoupling function from backing retouch.…”