Dimetrodon is a reptile which lived millions of years before Tyrannosaurus set foot on North America and Asia. It is sometimes mistaken for a mammal because it is a Synapsid.


Like modern lizards, Dimetrodon walked on four legs. It had a large sail, which is thought to be used to cool and warm itself.


Dinosaur Island

Only one Dimetrodon has been spotted on Dinosaur Island, which lived on the North side.


Dinosaur Island

Dinosaur Island Revival

  • Season 3, Episode 2 A King Emerges
  • Season 3, Episode 6 Old Blood
  • Season 3, Episode 7 End Of An Era
  • Season 3, Episode 8 Another Day Over
  • Season 3, Episode 10 The Next Generation

Known Dimetrodons