order Ornithischia


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Related to order Ornithischia: Ornithopoda
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.order Ornithischia - extinct terrestrial reptiles having bird-like pelvises: armored dinosaurs (thyreophorans); boneheaded and horned dinosaurs (marginocephalians); duck-billed dinosaurs (euronithopods)
animal order - the order of animals
Archosauria, subclass Archosauria - a large subclass of diapsid reptiles including: crocodiles; alligators; dinosaurs; pterosaurs; plesiosaurs; ichthyosaurs; thecodonts
ornithischian, ornithischian dinosaur - herbivorous dinosaur with a pelvis like that of a bird
genus Pisanosaurus - primitive ornithischian dinosaur found in Argentina; early Triassic
genus Staurikosaurus - primitive ornithischian dinosaur found in Brazil
suborder Thyreophora, Thyreophora, thyreophoran - armored dinosaurs: stegosaurs and ankylosaurs
Marginocephalia, marginocephalian, suborder Marginocephalia - includes boneheaded (pachycephalosaurs) and horned (ceratopsian) dinosaurs
euronithopod, Euronithopoda, Ornithopoda, suborder Euronithopoda, suborder Ornithopoda - widespread group including duck-billed dinosaurs and their early relatives (hadrosaurs, trachodon and iguanodon)
References in periodicals archive ?
According to an Argentine press release, the 70-million-year-old fossil fragments belonged to a small, armored herbivore of the order Ornithischia. The fossil shows that Antarctica was warmer when the animal lived than it is today, according to the Argentine scientists.