Before you play

What Prehistoric Speed Means

This figure compares estimated top-speed values for dinosaurs in kilometers per hour.

  • The current pool is dinosaur-only because that is where the source coverage is strong enough to play honestly.
  • These are estimate-style top speeds, not instrumented radar captures from the Mesozoic.
  • Use the number as a comparative paleo guess, not as a stopwatch promise.

Fast is still speculative when your source material is bones and modeling.