The theropod in the Dueling Dinosaurs group lies encased in its field jacket. Scientists have debated whether specimens dubbed Nanotyrannus actually represent members of a distinct species or simply ... more 
The theropod in the Dueling Dinosaurs group lies encased in its field jacket. Scientists have debated whether specimens dubbed Nanotyrannus actually represent members of a distinct species or simply juvenile versions of T. rex. less 
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Mon, Nov 18, 2013 2:40 PM EST