DescriptionThe footprints of hominins can reveal vital information such as presence, height, stride length and morphology that reflects the imprinters’ brand of bipedal locomotion. But how can researchers be sure that marks that look superficially like hominin prints are in fact the real thing? There is currently no method used by the scientific community to assure the validity of hominin prints. I introduce here a method that compares potential prints against others on the basis of their geometry, rather than anatomy as has been used in past print comparisons. The controversial site of Valsequillo, Mexico is tested here against five other print sites throughout the world ranging in age from ~2,120 YBP to 1.5 Ma, as well as a sample of modern unshod individuals. The site’s status as a pre-Clovis hominin site is revoked as the prints fail to fall within the range of prints made by varying species in a range of substrates and depositional environments.