Dictionary of Human Evolution and Biology

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Preneandertal Hypothesis

Model that attempts to explain the position of the Neandertals proposed by S. Sergi, who argued that the Neandertals arose from a preneandertal stock that became progressively specialized for resisting cold and underwent severe natural selection and restricted gene flow that led to classic Neandertal isolates exemplified by La Chapelle, La Ferrassie, Neander Valley, and others. Supporters of this view have included Keith and McCown, Howell, Le Gros Clark, Howells, Stringer, and Trinkaus.

Cf. the Neandertal phase of man hypothesis, the presapiens hypothesis, the monophyletic hypothesis, and the polyphyletic hypothesis.

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