| A | B |
|---|
| fossils | Plant or animal remains that have been preserved in the Earth |
| Paleontologist | Scientist who studies fossils to learn about ancient life forms |
| geologist | Scientist who studies rocks and minerals |
| dinosaur | Means terrible lizard; known to rule the land during prehistoric times |
| replacement | Process of fossil formation when the original material is replaced by mineral deposits; example is petrified wood |
| carbon imprint | Process of fossil formation that occurs as the original object is compressed to leave an imprint made of carbon |
| amber | Resin from ancient pine trees |
| trace fossils | These are not the remains of animals, but burrows, footprints, and evidence of feeding; example is coprolite |
| gastrolith | Stones that are found in the digestive system of dinosaurs |
| coprolite | Fossilized dinosaur dung |
| Ornithischians | Bird-hipped dinosaurs; such as the stegosaurus |
| Saurischians | Lizard-hipped dinosaurs; such as the tyrannosaurus rex |
| carnivore | meat eating dinosaur |
| herbivores | plant eating dinosaur |
| bipedal | Dinosaurs that walk or run on two legs |
| Quadrupedal | Dinosaurs that walk or run on four legs |
