Dinosaurs were reptiles that roamed Earth during the Mesozoic Era, also known as the “Age of Reptiles.” Here are nine facts about these ancient reptiles.
1. The Tyrannosaurus Rex (T. rex) is the most famous dinosaur.
2. The word “dinosaur” combines the Greek words deinos (meaning “terrible”) and sauros (meaning “lizard”).
3. Dinosaurs lived for about 165 million years.
4. National Dinosaur Day is celebrated on May 15 (and also June 1).
5. The Argentinosaurus was the largest dinosaur. It was more than 100 feet and about 50 feet tall.
6. The first dinosaur to be named was the Megalosaurus in 1824.
7. Most dinosaurs were herbivores (vegetarians).
8. The dinosaur with the longest name is the Micropachycephalosaurus.
9. The smallest dinosaur was the Oculudentavis. It was the size of a bee hummingbird, today’s smallest bird, which measures about 2 1/2 inches long.
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