page_title: Deuterosaurus
section_title: Anatomy
hierarchical_section_title: Deuterosaurus / Anatomy
caption_attribution_description: English: Head of Deuterosaurus jubilaei Русский: Голова Deuterosaurus jubilaei
context_page_description: Deuterosaurus is an extinct genus of dinocephalian therapsids, one of the non-mammalian synapsids dominating the land during the late Palaeozoic.
context_section_description: Skulls of Deuterosaurus are well known from several finds. They were around 80 cm long (2 ft 6 in) with a long snout and conical teeth. Like all anteosaurs, the skull possessed long, dagger-like canine teeth. The skull was rather short for an anteosaur, with a broad cheek region, indicating a very strong bite. The eyes were partly slanted forward, giving it at least partial stereo vision. The pineal eye, though small, had a well formed opening right atop the brain case.
  Deuterosaurus was a very large animal, the size of a modern grizzly bear. T. H. Huxley mistakenly considered it to be a dinosaur. With its long tail, it had an adult length of 5–6 meters (15–18 ft) and weighted around half a ton. Judging from related therapsids, the short but massive legs were held splayed, much like a modern crocodile. When walking, the tail would have swung sideways, like in modern reptiles.
caption: D. jubilaei head
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