how did dinosaur want to live on the earth?
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As originally proposed in 1980 by a team of scientists led by Luis Alvarez and his son Walter Alvarez, it is now generally thought that the K–Pg extinction was caused by the impact of a massive comet or asteroid 10 to 15 km (6 to 9 mi) wide, 66 million years ago, which devastated the global environment, mainly through ..
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- Dinosaurs are a diverse group of reptiles of the clade Dinosauria.
- They first appeared during the Triassic period, between 243 and 233.23 million years ago, although the exact origin and timing of the evolution of dinosaurs is the subject of active research.
- Dinosaurs lived on all of the continents.
- At the beginning of the age of dinosaurs (during the Triassic Period, about 230 million years ago), the continents were arranged together as a single supercontinent called Pangea.
- During the 165 million years of dinosaur existence this supercontinent slowly broke apart.
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