ceratopsian

noun

cer·a·top·sian | \ ˌsər-ə-ˈtäp-sē-ən

Definition of ceratopsian

: any of a suborder (Ceratopsia) of ornithischian dinosaurs of the Late Cretaceous having horns, a sharp horny beak, and a bony frill projecting backward from the skull

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But in ceratopsians, both sexes grew the elaborate facial coat racks, suggesting something unique happened within the group of dinosaurs. — Jason Daley, Smithsonian, "Dinosaur Horns Were For Making Love, Not War," 23 Mar. 2018 The team studied the patterns of ornamental horns and frills in 46 species of horned dinosaurs (ceratopsians), including the triceratops. — Katherine Hignett, Newsweek, "Horny Triceratops: Dinosaurs Developed Frills and Horns to Woo A Mate," 21 Mar. 2018 The findings are the latest in a long-running controversy over why ceratopsians—the dinosaur group containing Triceratops—lugged around massive, bony frills on their heads. — Michael Greshko, National Geographic, "Horned Dinosaurs May Have Used Their Frills to Flirt," 21 Jan. 2016

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