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The largest described U
meaning it is a genus which is represented by only footprints
researchers have recently returned to Africa hoping to find more evidence of Spinosaurus and other dinosaurs
sharp beak-like tip (which lacked teeth) indicates that its diet was mainly fish and cephalopods
Location: Mongolia Formation: Red Beds of Khermeen Tsav Age: Late Cretaceous
Ursus spelaeus, Cave Bear Tooth (Canine) Alamosaurus The largest described UU. spelaeus possessed a well evolved dental battery. Behind a row of 6 incisors protruded two very large and robust canines. From there the gum was void of teeth back to the most rearward premolar. The molars, however, were substantial. Longer and wider than those of any of the cave bears predecessors, the molars had large grinding surfaces which were employed in grinding plants. The chewing muscles must have been exceptionally large judging from the
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