单词 | diapsid |
释义 | diapsid (once / 1969886 pages) n WORD FAMILY diapsid: diapsids USAGE EXAMPLESThat diapsid group includes crocodiles, lizards, snakes, dinosaurs, and their surviving kin, birds. Science Magazine(Jun 24, 2015) Another group of animals related to diapsids are the testudines: turtles and tortoises. Slate(Sep 20, 2012) Early loss and multiple return of the lower temporal arcade in diapsid reptiles. Scientific American(Jul 04, 2012) n reptile having a pair of openings in the skull behind each eye Syn|Ant|Hypo|Hyper diapsid reptile anapsid, anapsid reptile primitive reptile having no opening in the temporal region of the skull; all extinct except turtles Sphenodon punctatum, tuatara only extant member of the order Rhynchocephalia of large spiny lizard-like diapsid reptiles of coastal islands off New Zealand saurianany of various reptiles of the suborder Sauria which includes lizards; in former classifications included also the crocodiles and dinosaurs archosaur, archosaurian, archosaurian reptileextinct reptiles including: dinosaurs; plesiosaurs; pterosaurs; ichthyosaurs; thecodonts crocodilian, crocodilian reptileextant archosaurian reptile ophidian, serpent, snakelimbless scaly elongate reptile; some are venomous lizardrelatively long-bodied reptile with usually two pairs of legs and a tapering tail crocodilelarge 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 gavialcrocodile of southeast Asia similar to but smaller than the gavial alligator, gatoreither of two amphibious reptiles related to crocodiles but with shorter broader snouts caiman, caymana semiaquatic reptile of Central and South America that resembles an alligator but has a more heavily armored belly Gavialis gangeticus, gaviallarge fish-eating Indian crocodilian with a long slender snout dinosaurany of numerous extinct terrestrial reptiles of the Mesozoic era flying reptile, pterosauran 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 reptilepresumably in the common ancestral line to dinosaurs and crocodiles and birds ichthyosaurany of several marine reptiles of the Mesozoic having a body like a porpoise with dorsal and tail fins and paddle-shaped limbs plesiosaur, plesiosaurusextinct marine reptile with a small head on a long neck a short tail and four paddle-shaped limbs; of the Jurassic and Cretaceous nothosaurextinct marine reptile with longer more slender limbs than plesiosaurs and less completely modified for swimming colubrid, colubrid snakemostly harmless temperate-to-tropical terrestrial or arboreal or aquatic snakes blind snake, worm snakewormlike burrowing snake of warm regions having vestigial eyes constrictorany of various large nonvenomous snakes that kill their prey by crushing it in its coils elapid, elapid snakeany of numerous venomous fanged snakes of warmer parts of both hemispheres sea snakeany 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 vipervenomous Old World snakes characterized by hollow venom-conducting fangs in the upper jaw reptile, reptilian any cold-blooded vertebrate of the class Reptilia including tortoises, turtles, snakes, lizards, alligators, crocodiles, and extinct forms |
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