ornithischian

Other forms: ornithischians

Definitions of ornithischian

1. noun

   herbivorous dinosaur with a pelvis like that of a bird
   synonyms: ornithischian dinosaur

   types:

   pisanosaur, pisanosaurus

   primitive dinosaur found in Argentina

   staurikosaur, staurikosaurus

   primitive dinosaur found in Brazil

   armored dinosaur

   dinosaurs having bony armour

   bone-headed dinosaur

   bipedal herbivorous dinosaurs with bony crowns

   ceratopsian, horned dinosaur

   any of several four-footed herbivorous dinosaurs with enormous beaked skulls; of the late Cretaceous in North America and Mongolia

   ornithopod, ornithopod dinosaur

   bipedal herbivorous dinosaur

   duck-billed dinosaur, hadrosaur, hadrosaurus

   any of numerous large bipedal ornithischian dinosaurs having a horny duck-like bill and webbed feet; may have been partly aquatic

   Stegosaur stenops, stegosaur, stegosaurus

   herbivorous ornithischian dinosaur with a row of bony plates along its back and a spiked tail probably used as a weapon

   ankylosaur, ankylosaurus

   having the back covered with thick bony plates; thought to have walked with a sprawling gait resembling a lizard's

   pachycephalosaur, pachycephalosaurus

   bipedal herbivore having 10 inches of bone atop its head; largest boneheaded dinosaur ever found

   protoceratops

   small horned dinosaur

   triceratops

   huge ceratopsian dinosaur having three horns and the neck heavily armored with a very solid frill

   styracosaur, styracosaurus

   an unusual ceratopsian dinosaur having many large spikes around the edge of its bony frill and a long nose horn; late Cretaceous

   psittacosaur, psittacosaurus

   primitive dinosaur actually lacking horns and having only the beginning of a frill; long hind limbs and short forelimbs; may have been bipedal

   anatotitan

   one of the largest and most famous duck-billed dinosaurs

   corythosaur, corythosaurus

   duck-billed dinosaur with nasal passages that expand into a crest like a hollow helmet

   edmontosaurus

   duck-billed dinosaur from Canada found as a fossilized mummy with skin

   trachodon, trachodont

   large duck-billed dinosaur of the Cretaceous period

   type of:

   dinosaur

   any of numerous extinct terrestrial reptiles of the Mesozoic era