#order_Sauropterygia__Sauropterygia extinct marine reptiles: plesiosaurs; nothosaurs
supertype: #animal_order the order of animals
member of: #subclass_Archosauria
member: #suborder_Plesiosauria__Plesiosauria any of the plesiosaurs
member: #genus_Plesiosaurus a reptile genus of suborder Plesiosauria
member: #plesiosaur__plesiosaurus extinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous
member: #suborder_Nothosauria__Nothosauria a suborder of Sauropterygia
member: #genus_Nothosaurus a genus of Nothosauria
member: #nothosaur extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming
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