This discovery is thrilling, but knowledge Antarctica was temperate 90Mya is not a revelation, nor does it explain Piri Reis' map or any other of Antarctice prior to the 17th Century, since it hadn't been discovered yet at that time, according to official history.

Given earlier maps do exist, clearly official history is incomplete. Explanation for maps that show antarctice without ice remain a greater mystery yet, because humanity certainly did not find Antarctica millions of years ago, not having yet arisen.

Thanks!