The Dinosaurs That Once Roamed America

2 imagenes, 8 preguntas, 1 definicion, 1 dato, 4 videos, 1 encuesta sobre The Dinosaurs That Once Roamed America en ARTi.

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Dinosaurs of ancient America

Imágenes

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teacher Long before Tyrannosaurus rex, this agile, three-clawed predator ruled the American floodplains.

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teacher This armored giant used a deadly four-spiked tail weapon to defend against predators.

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Fun Facts

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Fun Fact

Stegosaurus brain: The 30-foot-long Stegosaurus had a brain the size of a walnut, weighing just 2.8 ounces, making it incredibly small compared to its massive body.

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Quizzes

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Quiz

In which US state was the first Stegosaurus fossil discovered in 1877?

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Quiz

In which US rock formation were Stegosaurus and Diplodocus first discovered?

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Quiz

How many claws did an Allosaurus have on each of its powerful front hands?

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Quiz

During which geological period did the giants of the Morrison Formation live?

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Quiz

What is the informal scientific name given to the spiked tail weapon of a Stegosaurus?

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Quiz

Which Jurassic predator, known from the famous fossil 'Big Al,' ruled North America before Tyrannosaurus rex?

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Quiz

What did Diplodocus likely use its extremely long, whip-like tail for?

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Quiz

How did giant sauropods like Diplodocus manage to keep their massive necks light enough to lift?

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Glosario

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Glossary

sauropod (noun)
A very large, herbivorous dinosaur with a long neck and tail, a small head, and four thick legs. In 1877, Arthur Lakes discovered massive bones of these creatures in Colorado's Morrison Formation.