Valdosaurus canaliculatus was recognised in 1977 as very fragmentary remains and subsequently placed in the family Dryosauridae. However the skull of this interesting dinosaur is still unknown, so it is difficult to be precise about its relationships within the Ornithopoda. Very recently, researchers have considered dryosaurs as close to the evolutionary tree of the Superfamily Iguanodontoidea. Dinosaur Isle displays a beautifully preserved hindlimb of this rare dinosaur.
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