Geographical variation in Australian backed artefacts: Trialling a new index of symmetry.

Geographical variation in backed artefact size and morphology has long been recognised in Australia. This paper evaluates a novel measure of symmetry that can quantify regional and continental-scale geographic patterns in backed artefact forms. The result indicates that we can construct new depictions of regional differences in Australian backed artefacts, and that evolutionary explorations of those differences are worthwhile. [ABSTRACT FROM AUTHOR]