Many kinds of dinosaurs were fossilized. The teeth marks in fossils show what they like to eat. Scientists found lots of dinosaur bones. Trace fossils can be made of a mold and it tells you what kind of dinosaur they are. True form fossils are also called body fossils. Dinosaurs can include everything to bones, to eggs, to teeth and claws,to skin, and organs. Cast fossils are when an impression fills with mud or other mineral sediment and then is fossilized. Many kinds of fossilized dinosaurs are now living in a museum.