Jurassic and Cretaceous

• Carnivorous saurischian dinosaurs with short forelimbs

Wikipedia Word definitions in Wikipedia
Theropoda ( or , from Greek "wild beast" and "foot") or theropods are a group of saurischian dinosaurs . Theropods were ancestrally carnivorous , although a number of theropod groups evolved herbivory , omnivory , piscivory , and insectivory . Theropods ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
order of dinosaurs, from ther- "beast" + podos genitive of pous "foot" (see foot (n.)). So called because the structure of the feet resembled quadrupeds rather than birds. Related: Theropod .

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Theropoda \The*rop"o*da\, n. pl. [NL., fr. Gr. qh`r a beast + ?, ?, foot.] (Paleon.) An order of carnivorous dinosaurs in which the feet are less birdlike, and hence more like those of an ordinary quadruped, than in the Ornithopoda. It includes the rapacious ...