Theropoda


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Related to Theropoda: Stegosauria, Ceratosauria, Tetanurae

Theropoda

[thi′räp·əd·ə]
(paleontology)
A suborder of carnivorous bipedal saurischian reptiles which first appeared in the Upper Triassic and culminated in the uppermost Cretaceous.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Theropoda

 

a suborder of saurischian dinosaurs. The suborder embraced more than ten families, which were united in two superfamilies (or infraorders): Coelurosauria and Carnosauria. Coelurosaurs, relatively small in size, had developed anterior extremities and a rather small skull; late forms lacked teeth. Carnosaurs, giant predators with reduced anterior extremities, had a huge skull and powerful teeth.

Theropods were the principal group of terrestrial predatory vertebrates of the Mesozoic (Middle Triassic to the end of the Cretaceous). Some may have fed on social insects, such as termites and ants, or even on the fruits of trees. They walked on two legs. Remains of theropods are known from Mesozoic deposits of all continents; in the USSR, remains have been found in Kazakhstan, Middle Asia, and Transbaikalia.

REFERENCE

Osnovy paleontologii: Zemnovodnye, presmykaiushchiesia i ptitsy. Moscow, 1964.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Old studies show that the first ever dinosaurs came about on the Southern part of the earth, but the new relationship between Theropoda and Ornithischia says they may have originated in the North.
(1999): On the presence of Allosaurus fragilis (Theropoda, Carnosauria) in the Upper Jurassic of Portugal: first evidence of an inter-continental dinosaur species.
(2007): Recently Rediscovered Baryonychine Teeth (Dinosauria: Theropoda): New Morphologic Data, Range Extension and Similarity to Ceratosaurus.
Dilophosaurus wetherilli (Dinosauria, Theropoda) osteology and comparisons.
(2000): A new genus of Dromaeosauridae (Dinosauria, Theropoda) from the Upper Cretaceous of France.
(2002): Discovery of megalosaur (Dinosauria, Theropoda) in the middle Bathonian of Normandy (France) and its implications for the phylogeny of basal Tetanurae.