Corythosaurs

 Corythosaurs *
 * The name corythosaur means helmet lizard for the crest on its head!
 * The males' crest was bigger than the females'.
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 * The Corythosaurs formation is called "Oldman"
 * Its length is 33 feet and it weighs 3 tons!!
 * They are divided into the crested dinosaurs and the duckbills!
 * There are different varieties of Corythosaurs including the C. excavatus, C. casaurius, C. intermedius, C. frontalis, C. brevicristatus and C. bicristatus.
 * The frontal portion of the skull was usually flattened and protuded outwards to form a beak and this was extremely helpful when they collected leaves and twigs from the branches of high trees!!
 * Also, for some reason, no teeth are present in the front of the beak but despite this, the Corythosaur had an extremely well defined dental arrangement in the rear of its mouth!
 * The Corythosaur's skul was also uinique i another way; it accommodated nasal channels which granted the species a great sense of smell and the ability to make loud sounds!! The use of high toned sounds might have helped them to alert other s of danger, food or simply to communicate over long distances!!
 * The Corythosaurs limbs consisted of three toes and were deflated padded, similar to the webbed feet of ducks!