How many types of dinosaurs are there?

  • Types of dinosaurs
  • Mesozoic Era
  • Saurischia
  • Ornithischia

There are over 700 known species of dinosaurs. They lived during the Mesozoic Era, which lasted from about 252 to 66 million years ago. Dinosaurs are classified into two main groups: Saurischia and Ornithischia.

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