#ichthyosaur  any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
  supertype:  archosaur__archosaurian__archosaurian_reptile  extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts
  member of:  order_Ichthyosauria
  subtype:  ichthyosaurus__ichthyosauru  ichthyosaurs of the Jurassic
  subtype:  stenopterygius__Stenopterygius_quadrisicissus  an ichthyosaur of the genus Stenopterygius

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