Dinosaurs BY jacob redick

The hot Cretaceous winds blow against the Velociraptors as they stalk the T-Rex. A fiery asteroid falls to the ground blasting anything in its way to pieces. It's the end of the dinosaurs life in the time periods, and the extinction of the dinosaurs has begun. The T-Rex uses its unusual traits to blast down to it's hideout in the cliffs. Next, the T-Rex cowers in it's cave as the asteroids bury it in the rocks.

The asteroid collides with earth.

Time Periods

Dinosaurs lived in many different time periods. One such period, was the Triassic period. The Triassic was home to the first dinosaurs and mammals. It was also the first time period in the line of many. The second time period, was the Jurassic period. The Jurassic had many rainforests and lakes. Also, the Jurassic was home to the first huge sauropods (big herbivores that walked on 4 legs) such as Diplodocus, and Brachiosaurus to name a few. The third and final time period, was the Cretaceous period. The Cretaceous is the time period that had the biggest carnivores, like T-Rex. The Cretaceous also was the closest to our present time. Throughout the years dinosaurs have lived through many historic time periods.

A chart of the time periods.

T-Rex

T-Rex is one of the most popular dinosaurs, and holds many interesting facts. T-Rex weighed 8 tons, they were heavier than most other dinosaurs. However, females could weigh up to 9 tons and were larger than the males. They can lift up to 400 pounds. That's enough to lift up a juvenile iguanodon (which is a very large version of an iguana which is younger because it is a juvenile). Also, they could run up to 20 miles per hour after an unsuspecting dinner. Their jaws were able to chomp through bones of its prey, and they could also swallow the bones. In addition, the T-Rex ate Hadrosaurs (herbivores that walk on all 4 legs) and Triceratops ( a dinosaur that had three horns and a frill on its head) and small herbivores, like Gallimimus. The Tyrannosaurus Rex is one of the most fascinating dinosaurs on the planet.

A look at the T-Rex. Notice how small their arms are. Their arms were made for speed.

The T-Rex hunting Gallimimus (a small herbivore.)

T-Rex's 5 foot long head. They also had teeth that could cut through meat efficiently.

Extinction Event

One of the most controversial topics is how the dinosaurs died, here are what some scientists think happened to the dinosaurs. For example, one theory is that a star exploded and the radiation came into earth's air and radiated the plants (made the plants sick). When the herbivores and carnivores ate, the radiation killed them. Another possible way, is that plants died and herbivores couldn't eat. The herbivores died and eventually the carnivores died because they killed each other, or starved. Paleontologists' favorite idea, is that an asteroid breached the earth's atmosphere, crashed and caused a few earthquakes. The earthquakes rattled volcanoes and they erupted, sending ash to blot out the sun. The plants couldn't grow and the herbivores, and carnivores then couldn't eat. As you can see, all of these theories center around plant life dying off and dinosaurs not being able to eat anything.

This photo shows what might have happened in the chaos of the asteroid hitting.

DInosaurs dying of starvation because of plant life dwindling.

Dinosaurs were thriving animals living under its odd king, the Tyrannosaurus Rex. But that time being ruled over fell short by an extinction. After 250 million years living in the different, unique, time periods their time had ended. As you can see, dinosaurs were very interesting and also, hold many learning opportunities.

Time periods recap. Remember what you learned.

T-Rex recap. Remember what you learned.

Extinction recap. Remember what you learned.

There are many mueseums to learn about dinosaurs in. You could also become a paleontologist (a scientist who studies fossils) and learn even more.

Created By
Jacob Redick
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