Megalania (Megalania prisca or Varanus priscus) is an extinct giant goanna or monitor lizard. They were part of a megafaunal assemblage that inhabited southern Australia during the Pleistocene. They seem to have disappeared sometime after 50,000 years ago. The first aboriginal settlers of Australia might have encountered them.

Megalania (Megalania prisca or Varanus priscus) is an extinct giant goanna or monitor lizard. They were part of a megafaunal assemblage that inhabited southern Australia during the Pleistocene. They seem to have disappeared sometime after 50,000 years ago. The first aboriginal settlers of Australia might have encountered them.