ornithopod
Definition
Noun: 1. A bipedal herbivorous dinosaur: An ornithopod is a member of a major group of herbivorous, mostly bipedal dinosaurs characterized by bird-like hips and feet. They were common during the Jurassic and Cretaceous periods.
Usage Examples
- The ornithopod was one of the first dinosaurs ever scientifically described.
- Fossils show that this ornithopod had a specialized beak for cropping plants.
- Many ornithopods could walk on either two or four legs.
Advanced Usage
- In scientific classification: The term "ornithopod" refers specifically to members of the clade Ornithopoda within the order Ornithischia. They are distinguished from other herbivorous dinosaurs like sauropods (long-necked) and ceratopsians (horned).
- Hadrosaurs, or "duck-billed" dinosaurs, are considered a highly successful and advanced family of ornithopods.
Variants and Related Words
- Ornithischian (noun): The larger order of "bird-hipped" dinosaurs to which ornithopods belong. All ornithopods are ornithischians, but not all ornithischians (like stegosaurs or ankylosaurs) are ornithopods.
- Hadrosaur (noun): A specific, often crested, family of ornithopods known as "duck-billed" dinosaurs.
Synonyms
- Bipedal herbivore (descriptive phrase)
- Bird-hipped dinosaur (broader category)
Related Terms (Scientific Context)
- Thyreophora: The other major branch of ornithischian dinosaurs, which includes armored dinosaurs like and , contrasting with the unarmored ornithopods.
- Marginocephalia: The ornithischian branch that includes and .
Noun
-
bipedal herbivorous dinosaur
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