Eras of Life
 Dinosaur Evolution
 Feathered Dinosaurs
 Weird Dinosaurs
  Baryonyx walkerii
  Bonitasaura salgadoi
  Carnotaurus sastrei
  Centrosaurus apertus
  Ceratosaurus nasicornisi
  Corythosaurus casuarius
  Cryolophosaurus ellioti
  Dilophosaurus wertherelli
  Euoplocephalus tutus
  Giraffatitan brancai
  Gryposaurus notabilis
  Masiakasaurus knofleri
  Monolophosaurus jiangi
  Parasaurolophus walkeri
  Stygimoloch spinifer
  Styracosaurus albertensis
  Tarchia gigantea
  Troodon formosus
  Tsintaosaurus spinorhinus
 Prehistoric Sea Monsters
Corythosaurus casuarius (Brown, 1914)

Name Means: "Corinthian Lizard" Length: 33 feet (10 m)
Pronounced: kore-Ith-oh -Saw-rus Weight: 3.5 tons (3,200 kilos)
When it lived: Late Cretaceous - 75 MYA    
Where found: Alberta, Canada; Montana, USA    
   Corythosaurus is a member of the planting-eating, duck-billed dinosaur family that is sometimes referred to as hadrosaurs. It had a toothless, wide beak and hundreds of teeth in the back part of its mouth that it used for grinding tough plants to mush. Like other duckbills, it was a herd animal that traveled in large groups. Fossils of this dinosaur are sometimes found together with other plant-eating dinosaurs, which leads scientists to believe that different types of plant-eaters grouped together to feed, drink and maybe even migrate (moving from one area to another).
   Corythosaurus is most famous for its helmet or half dinner plate-like crest.  It is known from remains belonging to at least twenty individuals. The crest  is similar to the helmets worn by ancient Corinthian warriors; this resulted in its name.  The crest grew until adulthood and was likely used as a mating ritual ornament. There appears to be gender differentiation regarding the size of the crest, with males having a larger crest. At least 10 skulls have been identified from this species, giving scientists a good look at individual and gender differentiation. Fossilized skin remains have also been found, further contributing to the knowledge of Corythosaurus.


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