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Vinony

hadrosaur

noun

  1. any of a genus (Hadrosaurus) or family (Hadrosauridae) of mainly bipedal dinosaurs of the Late Cretaceous that have the forward part of the jaws toothless and flattened into a beak-like snout and the back part of the jaws filled with rows of numerous small, grinding teeth and that often have a solid or hollow bony crest on the skull : duck-billed dinosaur
L1475631 on Wikidata ↗

Wiktionary

noun

Etymology: Back-formation from Hadrosauridae, from the type genus Hadrosaurus, which in turn was derived from Ancient Greek ἁδρός (hadrós, “strong”) + σαῦρος (saûros, “lizard”).

  1. Any ornithopod dinosaur of the family Hadrosauridae.

    “Bipedal hadrosaurs, great hulking lambeosaurs, certain rhino-like ceratopsians and relatives of the velociraptors - all large and probably able swimmers - had the greatest success.”