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Dinosaur Fossils
Scientists know a lot about dinosaurs and other prehistoric creatures
because they have found fossils.
Fossils are preserved remains or traces of animals, plants and other
organisms.
Most fossils are found in sedimentary rocks that form from the deposits
of sand and mud.
There are two kinds of fossils:
- Fossilized Body Parts such as bones, teeth, claws, skin, etc.
- Trace Fossils (known as "ichnofossils") which show
footprints, nests, burrows, toothmarks, dung (known as "coprolites"), gizzard stones (the stones which some animals
swallowed to help digest their food), etc., which show the living activities
of animals.
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