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anapsida

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anapsida


  1  definition  found 
 
  From  WordNet  r  1.6  [wn]: 
 
  Anapsida 
  n  :  oldest  known  reptiles:  turtles;  extinct  Permian  forms  [syn: 
  {Anapsida},  {subclass  Anapsida}] 




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