The Oldest Dinosaur Was Nyasasaurus, Which Lived During the Middle Triassic and Stood 3 Feet Tall

Key Takeaways on the Oldest Dinosaur

  • The oldest dinosaur was Nyasasaurus, which lived about 243 million years ago.
  • Nyasasaurus lived during the middle Triassic when the supercontinent Pangea was still intact.
  • Early dinosaurs were about the size of…

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