polyphyletic

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Hence present day systematizing is being more and more discarded, and the said categories--as indeed also the lesser groups of forms--must be of polyphyletic origin, that is, they must have descended from different primitive stocks.

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Definitions (4)

Toggle American Heritage definitions American Heritage Dictionary (1)

  1. adjective Relating to or characterized by development from more than one ancestral type.

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Examples (28)

  • For those who insist that there are no "weaknesses" in the traditional case for universal common ancestry, let me cite a few examples: (1) The fossil record shows a pattern of explosions of new life-forms that contradicts the predictions and expectations of universal common descent and suggests the possibility of a discontinuous (polyphyletic) view of the history of life, rather than a continuous (monophyletic) view of the history of life. —  Evolution News & Views
  • All true marine plants are polyphyletic origin (evolved separately in different places in the phylogenetic tree) —  Citizendium, the Citizens' Compendium - Recent changes [en]
  • Weighing these paleo-biogeographic challenges, Clack (2002, 99) considers the possibility of polyphyletic tetrapod origins, but then dismisses that hypothesis as less likely than the monophyletic scenario: —  Evolution News & Views
  • Possible polyphyletic scenarios were methodologically and philosophically excluded as implausible. —  Evolution News & Views
  • Carl Woese, as advocates of the polyphyletic view, without informing the reader about the different number of separate origins postulated by their respective theories. —  Evolution News & Views
 

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Etymologies (1)

Toggle Century etymologies Century Dictionary (1)

  1. from Gr.πολύς, many, + φυλή, tribe: see phyle, phyletic.
 

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/pɑlɪfaɪˈlɛtɪk/
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