orthotaxon

English

Etymology

ortho- +‎ taxon

Noun

orthotaxon (plural orthotaxa)

  1. (taxonomy) A true taxon that is based on biological relationships rather than on form.
    • 2013, M. R. Clarke, Paleontology and Neontology of Cephalopods, page 139:
      Some hook types do not correspond with a particular specific orthotaxon and occur in more than one.
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