What does theropod mean?
Theropod is a specialist term for a member of Theropoda, one of the major groups of dinosaurs. Most theropods were bipedal, had three-toed feet, and possessed hollow bones, though these features varied considerably across the group. The word is often used informally for imposing carnivores such as Tyrannosaurus, but its scientific meaning is wider: theropods include smaller predators, omnivores, and plant-eating forms as well as birds, which are living theropods descended from small feathered dinosaurs. The word appears regularly in discussions of fossil discoveries, dinosaur anatomy, evolutionary biology, and the origin of birds. For general readers, it provides a useful way to distinguish a specific and important branch of the dinosaur family tree from other major groups, while also correcting the popular assumption that all theropods were gigantic and exclusively carnivorous.
nounA theropod is a member of Theropoda, a major group of predominantly bipedal dinosaurs characterized typically by three-toed feet; the group includes birds. In common usage, the word often refers to a carnivorous dinosaur such as Tyrannosaurus, but the scientific category is broader.
- A dinosaur belonging to the clade Theropoda, a group that includes birds.
"The museum displayed the fossilized skull of a large theropod that had lived millions of years ago."
"A theropod skeleton provides important clues about the evolution of birds."
"The film presents its prehistoric antagonist as a massive theropod terrorizing a remote island."
"Scientists discovered an unusual theropod with a long neck and a single row of sharp teeth."
The standard plural of theropod is theropods.
"Several theropods from the Jurassic period have been described from the region."
The name literally means "beast-foot," and the fierce dinosaurs it evokes are only part of the story: birds are living theropods.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does theropod come from?
Theropod combines the combining form therio-, from Greek thērion, meaning "beast" or "animal," with -pod, from Greek pous or podos, meaning "foot." The resulting name refers to the characteristic three-toed feet of these dinosaurs and was established during the historical development of dinosaur classification. The same Greek roots continue to appear in modern terms such as theriomorphic, theriophobia, theriotherapy, and podometer.
Related word forms
How theropod is actually used
Theropod is primarily a specialized paleontology term. In popular contexts it may imply a large, fierce, meat-eating dinosaur, although scientifically the group also includes smaller, omnivorous, and herbivorous forms.
Easily confused with theropod
A theropod is a dinosaur belonging to the group Theropoda, whereas a pteropod is a flying mammal belonging to the bat family.