A group scientist it was found reptiles size iguana who was "cousin" dinosaurs It has lived around 250 million years ago in forests Antarctica, announces this Thursday (January 31, 2019) Magazine Journal of Paleontology.
"This news animal Was archosaurcrocodiles and primitive relativity of dinosaurs, "he explained Chicago Field Museum (USA) Brandon Peecook, principal author of the research.
"By the way, it seems a bit lizardBut it is one of the first members of a great evolution in the group He emphasized. It tells us how dinosaurs and theirs kin the following evolved and expanded. "
du fossil skeleton Not entirely, although the paleontologist has a good perception animal, as baptized Antarctanax shackletoni (the first word means "King of Antarctica" and the other is the Ernest Shackleton explorer).
Based on similarity to fossil fuels, scientists were the carnivorous animals that hunted Antarctanax insects, protomamifers, and amphibians.
However, to do it paleontologistsIt's the most interesting thing about this reptile time and where he lived.
"We know more about the prehistoric Antarctica, it's strange," said Peecook. "We thought the Antarctic animals were similar to those that lived in the south. AfricaAt that time, both land bound. But Antarctica's fauna was surprisingly unique.
Two million years before Antarctanax lived, the land was very large to disappear Due to climate change, caused volcanic eruptions, Animal life lasted 90%.
In the following years mass disappearanceThey were filled with new animal groups vacuum.
"Before mass disappearance, the arkosaurs only found themselves in the equator, but they were everywhere, "said Peekok, Antarctica combination Animals and other species disappeared from other places.
The Antarctanax discovery supports the idea Antarctica was a place of rapid evolution and after the disappearance of diversity.
"We will find more animal types, we will learn more and more after the disappearance of the mass of the archosaur model under control," said Peecook.