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Dinosaurs:
Dinosaurs are numerous extinct reptiles. They lived on the earth for over 160 million years, from about 230 million years ago until about 65 million years ago.
- Extinct:
No longer in existence.having died out leaving no living representatives.
- Fossils:
The remains of a plant or animal that existed in a past geological age and that has been excavated from the soil.
- Reptile:
Any cold-blooded vertebrate of the class
- Paleontologist:
one who studies prehistoric life, including organisms' evolution and interactions with each other.
- Skeleton:
bones and cartilages that provide a frame for the body of an animal.
- Evolution:
a process in which something passes by degrees to a different stage
- Evolution:
a process in which something passes by degrees to a different stage
- Footprint:
a mark of a foot or shoe on a surface
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