Stegosaurus is a dinosaur that lived around 155 million years ago—during the Jurassic Period—in the Western portion of North America and parts of Europe.
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The Triceratops is a quadrupedal herbivore that lived during the late Cretaceous period—or about 68 million years ago.
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Velociraptor is a carnivorous dinosaur which lived during the Cretaceous Period—around 75 million years ago.
Learn MoreWhat is a dinosaur? While this is a simple question that can be answered with a simple answer, it doesn’t mean that it isn’t very fascinating. To learn exactly about these magnificent creatures you really have to go back over 231 million years ago. Back to a period of time known as the Triassic Period.
This is when the first dinosaurs are believed to have appeared on the planet. They would then go on to rule the planet for over 165 million years. This is when the Cretaceous–Paleogene extinction event destroyed seventy-five percent of all of the animal and plant species on Earth. While it was believed that all dinosaurs died during this extinction event, that is no longer believed to be true. Birds are now considered modern dinosaurs and as such, are believed to have been the only dinosaurs to survive this cataclysmic event.
Some people think that dinosaur bones weren’t discovered until the eighteenth century, which really isn’t correct. People have been finding the bones of dinosaurs for thousands of years. People just didn’t know they were dinosaurs. They either attributed them to mythical monsters or created mythical monsters to explain their existence. For instance, in ancient China, they were thought to be the bones of dragons. The Romans and Greeks thought they were giants, ogres and griffons.
Archelon is an extinct sea turtle which lived approximately 75 million to 65 million years ago during the Late Cretaceous Period. It was first discovered in 1895 by Dr. G.R.Wieland in South Dakota. In 1896, he would go on and name it Archelon – a name which means “ruling turtle.”
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The Dodo Bird – also known as Raphus cucullatus – is an extinct and flightless bird that was endemic to the island of Mauritius. It was a bird that went extinct over 300 years ago but is still one of the first things most people think about when they think about extinctions that were caused by human beings.
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Megalodon is a prehistoric shark which lived approximately 23 to 2.6 million years ago during the Early Miocene to the Late Pliocene Periods. Teeth of these sharks were originally found in rocky formations during the Renaissance and most of the people who saw them thought that they were the petrified tongues of dragons.
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