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diapsid reptile

Definitions of diapsid reptile
  1. noun
    reptile having a pair of openings in the skull behind each eye
    synonyms: diapsid
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    Antonyms:
    anapsid, anapsid reptile
    primitive reptile having no opening in the temporal region of the skull; all extinct except turtles
    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
    saurian
    any of various reptiles of the suborder Sauria which includes lizards; in former classifications included also the crocodiles and dinosaurs
    archosaur, archosaurian, archosaurian reptile
    extinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts
    crocodilian, crocodilian reptile
    extant archosaurian reptile
    ophidian, serpent, snake
    limbless scaly elongate reptile; some are venomous
    lizard
    relatively long-bodied reptile with usually two pairs of legs and a tapering tail
    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
    Tomistoma schlegeli, false gavial
    crocodile of southeast Asia similar to but smaller than the gavial
    alligator, gator
    either of two amphibious reptiles related to crocodiles but with shorter broader snouts
    caiman, cayman
    a semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly
    Gavialis gangeticus, gavial
    large fish-eating Indian crocodilian with a long slender snout
    dinosaur
    any of numerous extinct terrestrial reptiles of the Mesozoic era
    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
    thecodont, thecodont reptile
    presumably in the common ancestral line to dinosaurs and crocodiles and birds
    ichthyosaur
    any of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs
    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
    nothosaur
    extinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming
    colubrid, colubrid snake
    mostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes
    blind snake, worm snake
    wormlike burrowing snake of warm regions having vestigial eyes
    constrictor
    any of various large nonvenomous snakes that kill their prey by crushing it in its coils
    elapid, elapid snake
    any of numerous venomous fanged snakes of warmer parts of both hemispheres
    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
    viper
    venomous Old World snakes characterized by hollow venom-conducting fangs in the upper jaw
    type of:
    reptile, reptilian
    any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms
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