Dinosaurs science
- 2. M illio n s o f ye a r s a g o , Great beasts called "dinosaurs" thundered over the earth. Yet up until the last century, when the first dinosaur fossils were discovered, no one even imagined such animals existed.
- 3. D in o s a u r s Before there were any people there were dinosaurs. Dinosaurs were one of several kinds of prehistoric reptiles that lived during the Mesozoic Era the “Age of the Reptiles”
- 4. Dinosaur is the name of a group of prehistoric reptiles that ruled the earth about 160 million years ago. These animals died out millions of years ago, but they have fascinated people ever since they were first described in the early 1800’s.
- 6. Dinosaur Nat ional Monument Ut ah/Colorado A stony frieze at one of the continent’s largest and richest dinosaur quarries holds the bones of beasts that ruled the Jurassic: stegosaurs, allosaurs, apatosaurs and many more.
- 7. The first dinosaur to be described scientifically was Megalosaurus in 1824, by William Buckland. Buckland (1784-1856) was a Britishfossil hunter and clergyman who discovered some Megalosaurus fossils in 1819 and named the reptile in 1824. It was the first dinosaur ever described scientifically and first theropod dinosaur discovered (this is all in hindsight, because the dinosaurs had not yet been recognized as a separate taxonomic group - the word dinosaur hadn't even been invented yet).
- 8. Megalosaurus
- 9. Did They Have Colors? It is very difficult to figure out how the dinosaurs sounded, how they behaved, or what color they were.
- 10. Plant-Eaters Most dinosaurs were plant-eaters like: Triceratops What do we call plant-eaters? Herbivores
- 11. Meat-Eaters Some were meat-eaters like: T-Rex What do we call meat-eaters? Carnivores
- 12. The Food Chain
- 13. Where Did Everybody Go? You may have noticed that there are no dinosaurs around these days. In fact, there haven't been any around for about 66 million years.
- 14. Well, we don’t know the real absolute theory of how they became extinct, but---- One thing for sure is………. We will have an incredible time going back in time to learn about these marvelous creatures.
- 15. here are some