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the western United States
Location: Mongolia Formation: Red Beds of Khermeen Tsav Age: Late Cretaceous
Waste rock from a coal mine active in the 1800s
meaning it is a genus which is represented by only footprints
sharp beak-like tip (which lacked teeth) indicates that its diet was mainly fish and cephalopods
Ursus spelaeus, Cave Bear Tooth (Canine) Alamosaurus the western United StatesU. 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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