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Acristavus, new duckbilled dinosaur
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20-07-2011 10:38pm#1It seems that it was closely related to both Maiasaura and Brachylophosaurus, and now all three of them are being reclassified as subfamily Brachylophosaurini.
What makes Acristavus special is that it has no cranial ornamentation whatsoever, unlike every other hadrosaur known except Edmontosaurus (and I suposse, Anatotitan if the latter is a separate genus).
No pics of the critter just yet but, here's a Maiasaura skeleton just because:
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