from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various large carnivorous saurischian dinosaurs of the suborder Theropoda of the Jurassic and Cretaceous periods, characterized by bipedal locomotion, large jaws, and short forelimbs.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any large, bipedal dinosaur, of the suborder Theropoda, from the Jurassic and Cretaceous periods.
from The Century Dictionary and Cyclopedia
- Having feet like those of (mammalian) beasts, as a dinosaur; of or pertaining to the Theropoda.
- n. A carnivorous dinosaur of the order Theropoda.
- n. Also theriopod, and (erroneously) therapod.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. any of numerous carnivorous dinosaurs of the Triassic to Cretaceous with short forelimbs that walked or ran on strong hind legs
Also, we have another tiny, new dinosaur, the smallest carnivorous yet known from North America, Hesperonychus elizabethae, a 19-inch tall theropod from the Late Cretaceous of Alberta, Canada.
True feathers, so far as we know, were restricted to maniraptorans (the theropod clade that includes oviraptors, dromaeosaurs and birds), but simpler, filament-like integumentary structures appear to have evolved much earlier within theropod history, probably at or around the base of Coelurosauria.
If Mirischia the Brazilian theropod is one of my little pets, the enormous sauropod represented by the cervical vertebra MIWG. 7306 – affectionately (and unofficially) known to some of us as 'Angloposeidon' – is one of the biggest [the image at left, and that below, are my drawings of the specimen].
A preliminary account of a new tyrannosauroid theropod from the Wessex Formation (Early Cretaceous) of southern England.
Known as a theropod because it walks on its two hind legs, the is said to be a close relative of T-rex.
But one set of tracks shows the trail of a carnivore called a theropod leaving the water and climbing up a low hill on the shore.
He believes a type of two-legged, carnivorous dinosaur called a theropod made the tracks.
Both Dr. Norell and Dr. Erickson emphasized that their findings did not undermine the theory widely held among paleontologists that birds evolved from what are known as theropod dinosaurs.
First identified in southern Brazil by the Argentinian palaeontologist Osvaldo Reig, H. ischigualastensis had a mosaic of traits that meant it was difficult to define as a theropod, or even to be sure it was a dinosaur.
The researchers think Aerosteon, a type of dinosaur called a theropod, may have evolved this breathing style in part to keep it from toppling over while chasing prey on its two massive legs.