Noun order pterosauria has 1 sense
  1. Pterosauria, order Pterosauria - extinct flying reptiles: pterosaurs
    --1 is a kind of animal order
    --1 is a member of Archosauria, subclass Archosauria
    --1 has members:
     pterosaur, flying reptile; Pterodactylidae, family Pterodactylidae
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