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In Farina et al.[1], we claimed that a rich fossiliferous locality, Arroyo del Vizca1no (hereafter, AdV), with marked bones that are much older than widely accepted for human presence in the Americas, deserved ‘to be included in the agenda of early American peopling, either as a not foreseeable discovery... or as an example of natural processes mimicking human presence’. The comments by Suárez et al.[2] fail to offer a hypothesis of such a process. Instead, they mention we incur in ‘serious methodological problems and important interpretative errors’ that remain mostly unexplained.

Besides, our chief proposal of the marks having the features of those made by humans (which would render them an evidence as archaeological as any other) is only superficially and even erroneously dealt with, including criticisms to a previous, preliminary publication [3]. Their attempt at refuting our extensive and detailed work on 15 …