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were substantial
They eyes are made of paper and glued on
While tooth roots show that this early human had large teeth
Hexing and Deinocheirus
10---prionocyclus
Theropod (dinosaur) Bird Track, negative Troodon were substantialThe study of fossilized footprints, Ichnology, has become an important branch of paleontology. Footprints are trace fossils. They are considered trace fossils because they contain no fossil material, only the impressions left by the animal which made them. It is often difficult to determine with certainty which animal made a given print and therefore they are usually attributed to a group rather than a specific animal. The footprint specimens on this