One of the two divisions of Dinosaurs, the other is Saurischia, based on their hip structure. Ornithischia comes from Greek meaning ‘of a bird’ and ‘hip joint’; they are known as the bird hipped dinosaurs (although birds and the dinosaurs they evolved from are Saurischians.

Ornithischians had beaks, and were herbivores; some were bipedal and some were quadrupedal (walking on two or four legs, respectively)

Ceratopsians (Triceratops), stegosaurs (Kentrosaurus), ankylosaurs (Euoplocephalus), hardosaurs (Parasaurolophus), and Iguanodon are some commonly known dinosaurs in this group.

Early education through prehistoric toys : Ornithischia


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Probably the most recognizable dinosaur, this ceratopsian was one of the last non-avian dinosaurs before the mass extinction event at the end of the Cretaceous Time Period.

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A large and heavily protected stegosaur with large spikes protruding from the shoulders as well as down its back and tail. It was originally known as Omasaurus.


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From the Late Cretaceous in what is now far East Russia, this is the most complete hadrosaur discovered outside of North America.


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A hadrosaur formally thought to be Kritosaurus, having a thin and arching nasal hump (sometimes referred to as a 'roman nose'), it also had 1.5 inch high pyramidal scales on it's back.


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A heavily protected nodosaur from the Early Cretaceous, Gastonia had spikes along the tail, sides, and neck. It also had a large bony sacral shield over it's lower back to tail


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This was the first dino toy we got after he learned to love playing 'Dinosaurs Battle World Championships', either with people (me and him wrestling as dinos) or us smashing the toys together. I told him he was starting to smash too hard, and they really kind of hurt. I saw him coming in for another smash, so I held this guy, horns out :) #noSmashesSince


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A ceratopsian from the late Cretaceous time period in what is now North America. Only two partial skulls have been found, so many characteristics are based on other Ceratopsids. Two large curved horns extending upwards from the frill.


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He was watching Dino Dan (again) and was telling me about the half dinosaur half porcupine...I (we) actually thought they were quills until I started writing this page!


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An armoured dinosaur from found in Western North America from the end of the Late Cretaceous period; one of the last non-avian dinosaurs.


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We first discovered this on Tv show Dino Dan. It was one of the first dinosaurs he knew about before we researched together. I had to ask HIM about it!


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An ornithodod with a large crest probably used for communicating and maybe even thermoregulation. Parasaurolophus lived during the Late Cretaceous time period, in what is now North America.


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With a walnut sized brain, Stegosaurus lived in the Late Jurassic, Very well protected with spiked plates along its back and thagomizer (group of 4-8 spikes) at the end of its tail would be a formidable weapon.


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A stegosaur from 150 million years ago in the Late Jurassic with more vertebrae in its elongated neck than many sauropods. No Miragaia tail has been recovered; estimates made from other stegosaurs


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This was one of the first 'fancy dinos' we got him; he had become very interested in researching Styracosaurus on daddy's computer after watching Disney's Dinosaur 1000 times.


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A ceratopsian from the Late Cretaceous, Pachyrhinosaurus had three thick bosses on its skull, and two horns extending from its frill.


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More robust than other anklyosaurs, armour protected its head and body, and a club tail help defend against predators like Tarbosaurus.


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One of the heaviest ankylosaurs that lived in the Late Cretaceous in what is now Canada. Well protected with lots of armour - they even had eyelid armour!