<span>Labyrinthodont Lived First... </span><span>Did dinosaurs once lived on antarctica?<span>Absolutely! A theropod dinosaur named Cryolophosaurus (frozen crested lizard) Hope I Helped plz LEave a Thanks</span></span>
About 110 million years ago, labyrinthodonts ( maze-toothed), a group of extinct amphibians. They were evolved from lobed-finned fish in the Devonian period. They were dominant animals in the rift valley was present at that time between Antarctica and Australia.
Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth's surface.