Noun order sauropterygia has 1 sense
  1. Sauropterygia, order Sauropterygia - extinct marine reptiles: plesiosaurs; nothosaurs
    --1 is a kind of animal order
    --1 is a member of Archosauria, subclass Archosauria
    --1 has members:
     Plesiosauria, suborder Plesiosauria; Nothosauria, suborder Nothosauria
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