Theropoda

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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.

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.
References in periodicals archive ?
Yet, studies have shown that the primitive theropod Allosaurus also had hollow bones.
Preparing the skull and seeing the teeth of a theropod for the first time in 200m years was absolutely fantastic - you just can't beat that sort of thing.
Until now, the only non-carnivorous theropods known were late arrivals during the reign of the dinosaurs and closely related to birds.
Until now, herbivorous theropods were known only in close dinosaur relatives of modern-day birds, the team said.
Theropods such as velociraptor and T rex - the species linked to modern birds - were more innovative and adaptable with their habitat and ways of gathering food, a study from Adelaide University has revealed.
As one of the most famous set of dinosaur tracks in the world, the Paluxy River tracks contain both theropod and sauropod footprints.
Thomas Henry Huxley, one of Darwin's strongest advocates, proposed a close relationship between birds and small, meat-eating dinosaurs, or theropods.
Linhenykus lived alongside closely related and similarly sized theropod dinosaurs.
Scientists believe the hump on the dinosaur's back, which was at least 16 inches tall, may have been used to help this meat-eating theropod communicate among its own species.
Although it was suggested that birds have some relationship with carnivorous theropod dinosaurs as early as the 19th century (e.
Among the key events discussed are the discoveries of a basal titanosaur that may be the largest dinosaur found in China, the first large-bodied theropod from Pakistan, the largest Jurassic theropod tooth documented to date, and the first preserved integument and bonebed pertaining to the horned dinosaur Triceratops.
rex did not evolve as meat-eating theropod dinosaurs grew in size, as most experts believe.