pterosaur
/ˈtɛrəsɔː
/noun
A fossil flying reptile of the Jurassic and Cretaceous periods, with membranous wings supported by a greatly lengthened fourth finger.
- Order Pterosauria, subdivision Archosauria: several families, including pterodactyls, pteranodons, etc..
- Over the head of Tyrannosaurus rex glides the skeleton of Pteranodon, a pterosaur or flying reptile.
- A pterosaur is a flying reptile from the Mesozoic period, the time of the dinosaurs.
Origin
Mid 19th century: from modern Latin Pterosauria (plural), from Greek pteron 'wing' + sauros 'lizard'.
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