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from The Century Dictionary and Cyclopedia

  • An order of Reptilia, having the skull monimostylic and cionocranial (with fixed quadrate bone and a columella), united mandibular rami, amphicœlian vertebræ, and no organs of copulation: named by Günther in 1867 from the genus Rhynchocephalus (or Hatteria or Sphenodon). See cut under Hatteria.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. tuataras; extinct forms from middle Triassic


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