- Types:
- show 23 types...
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Sphenodon punctatum, tuatara
only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand
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saurian
any of various reptiles of the suborder Sauria which includes lizards; in former classifications included also the crocodiles and dinosaurs
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archosaur, archosaurian, archosaurian reptile
extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts
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crocodilian, crocodilian reptile
extant archosaurian reptile
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ophidian, serpent, snake
limbless scaly elongate reptile; some are venomous
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lizard
relatively long-bodied reptile with usually two pairs of legs and a tapering tail
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crocodile
large voracious aquatic reptile having a long snout with massive jaws and sharp teeth and a body covered with bony plates; of sluggish tropical waters
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Tomistoma schlegeli, false gavial
crocodile of southeast Asia similar to but smaller than the gavial
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alligator, gator
either of two amphibious reptiles related to crocodiles but with shorter broader snouts
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caiman, cayman
a semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly
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Gavialis gangeticus, gavial
large fish-eating Indian crocodilian with a long slender snout
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dinosaur
any of numerous extinct terrestrial reptiles of the Mesozoic era
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flying reptile, pterosaur
an extinct reptile of the Jurassic and Cretaceous having a bird-like beak and membranous wings supported by the very long fourth digit of each forelimb
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thecodont, thecodont reptile
presumably in the common ancestral line to dinosaurs and crocodiles and birds
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ichthyosaur
any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
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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
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nothosaur
extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming
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colubrid, colubrid snake
mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes
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blind snake, worm snake
wormlike burrowing snake of warm regions having vestigial eyes
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constrictor
any of various large nonvenomous snakes that kill their prey by crushing it in its coils
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elapid, elapid snake
any of numerous venomous fanged snakes of warmer parts of both hemispheres
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sea snake
any of numerous venomous aquatic viviparous snakes having a fin-like tail; of warm littoral seas; feed on fish which they immobilize with quick-acting venom
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viper
venomous Old World snakes characterized by hollow venom-conducting fangs in the upper jaw
