Dictionary of Human Evolution and Biology

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Ameghino’s Autochthonous Thesis

Proposal by Argentinean paleontologist F. Ameghino, advanced in the 1930s, that Native Americans arose and evolved from basal New World primates. Little evidence supports this idea, and it was discarded by the 1960s. The term ameghinoi has come to refer to any fossil of dubious provenance or authenticity.

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