Komodo dragon collision between Australia and Southeast Asia allowed these larger varanids to move back into what is now the Indonesian archipelago, extending their range as far east as the island of Timor. The Komodo dragon was believed to have differentiated from its Australian ancestors 4 million years ago. However, recent fossil evidence from Queensland suggests the Komodo dragon actually evolved in Australia before spreading to Indonesia. Dramatic lowering of sea level during the last glacial period uncovered extensive stretches of continental shelf that the Komodo dragon colonised, becoming isolated in their present island range as sea levels rose afterwards. Extinct Pliocene
Giant girdled lizard Giant girdled lizard The sungazer ("Smaug giganteus", syn. "Cordylus giganteus"), also known as the giant girdled lizard or giant dragon lizard or giant zonure, is the largest species of the Cordylidae, a family of lizards from Sub-Saharan Africa. This threatened species is endemic to Highveld grasslands in the interior of South Africa. In 2011, it was assigned to the new genus "Smaug" along with seven other species previously belonging to the genus "Cordylus", based on a comprehensive molecular phylogeny of the Cordylidae. The sungazer is a heavily armoured species, with a typical snout–to-vent length of (exceptionally up to ), and