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Dinosauria

   Also found in: Encyclopedia, Wikipedia, Hutchinson 0.04 sec.
Di`no`sau´ri`a
n. pl.1.(Paleon.) An order of extinct mesozoic reptiles, mostly of large size (whence the name). Notwithstanding their size, they present birdlike characters in the skeleton, esp. in the pelvis and hind limbs. Some walked on their three-toed hind feet, thus producing the large "bird tracks," so-called, of mesozoic sandstones; others were five-toed and quadrupedal. See Illust. of Compsognathus, also Illustration of Dinosaur in Appendix.


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As of 1990, when the first edition of a comprehensive reference book entitled The Dinosauria (David B.
Plenty of dinosaurs yet to be found by Science News
Farlow to upbraid a few colleagues when he addressed the question of physiology in The Dinosauria (1990, University of California Press).
The pulse of T. Rex: were dinosaurs warm-blooded? Does it even matter? by Monastersky, Richard / Science News
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