How to pronounce : STAY-go-SORE-ee-ah

A group of herbivores that lived during the Jurassic and early Cretaceous periods.

Stegosaurs lived in the North America, Europe and China ( one species,Kentrosaurus, lived in Africa)

Early stegosaurs (like Huayangosaurus) could run. As they evolved, the hind limbs grew much longer than the fore limbs. (As seen in Stegosaurus) This prevented them from running, but placed their tail spikes (thagomizer) much higher up in the air – offering greater defence from larger carnivores

  • Tuojiangosaurus
  • Paranthodon
  • Gigantspinosaurus
  • Huayangosaurus
  • Chungkingosaurus

  • Chialingosaurus
  • Kentrosaurus
  • Loricatosaurus
  • Dacentrurus

Early education through prehistoric toys : Stegosauria (Stegosaurs)


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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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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