Dictionary of Human Evolution and Biology

Dictionary of Human Evolution and Biology

Single Species Hypothesis

Theory that there has never been more than one Plio-Pleistocene hominid lineage at any given time because all hominids are characterized by culture and thus occupy the same ecological niche; popularized in the 1960s by Brace and Wolpoff and at that time held to be true by many paleontologists; later fossil discoveries proved the untenability of this idea.

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dietary hypothesis (... -hominid theory; cf. the single species hypothesis.)
polytypic species concept (... . Aka multidimensional species concept; polytypism. See Rassenkreis. Cf. monotypic species.)
single-gene hypothesis (Any proposal that a specific structure, function, or behavior in an organism is the result of ...)
Asian origin hypothesis (... hypothesis and the multiregional continuity ...)
single origin hypothesis (See the out of Africa II model for human origins, aka the monophyletic hypothesis of racial ...)