Previous researchers have reported difficulties in distinguishing between surface marks on bone formed by sedimentary abrasion and those inflicted while butchering. Trampling by large ungulates and humans has been credited with producing pseudocut marks: natural alterations to the bone that mimic cultural ones. The purposes of this research are: (1) to re-examine trampling as a taphonomic process, and (2) to suggest criteria useful for distinguishing sedimentary abrasion, including trampling, from butchery. Macroscopic and microscopic comparison of experimentally trampled bones and those which have had soft tissue removed with a flint tool demonstrate significant differences between the surface modifications produced by the two processes.
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