Sister group

In phylogenetics, a sister group or sister taxon, also called an adelphotaxon,[1] comprises the closest relative(s) of another given unit in an evolutionary tree.[2]

  1. ^ Ultrastructural evidence for an adelphotaxon (sister group) to the Neodermata (Platyhelminthes)
  2. ^ Eernisse, Douglas J. "Introduction to Phylogeny: What is a Sister Taxon?". Biology 404 - Evolution. Department of Biological Science, California State University, Fullerton. Retrieved 4 January 2012.

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