ictodosauria

Noun
  1. Extinct reptiles of the later Triassic period (synset 101724045)
    is a type of: animal order - the order of animals
    member holonym: ictodosaur - intermediate in form between the therapsids and most primitive true mammals
    belongs to: subclass synapsida, synapsida - extinct reptiles of the Permian to Jurassic considered ancestral to mammals
    same as: order ictodosauria

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