It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
Polar forests were quite extensive. Fossils and even preserved remains of trees such as swamp cypress and dawn redwood from the Eocene have been found on Ellesmere Island in the Arctic. The preserved remains are not fossils, but actual pieces preserved in oxygen-poor water in the swampy forests of the time and then buried before they had the chance to decompose.
Two New Dinosaurs Discovered in Antarctica (Nat. Geographic)
Working in some of the planet's harshest conditions, fossil hunters have found two completely new species of dinosaur in Antarctica. This increases to eight the number of dinosaur species found on the perpetually frozen southern landmass.
n a study published by the British journal Nature, they gave a snapshot of terrain that for aeons has lain hidden beneath ice up to several kilometres thick. The imaging comes from a gruelling effort by Chinese glaciologists to probe the mysterious realm beneath the East Antarctic heights, one of the most forbidding places in the world. In 2004-5 and again in 2007-8, the team hauled deep-penetrating ground radar around a box-shaped sector, measuring 30 kilometres by 30 kilometres, at a point called Dome Argus, or Dome A.
Later, these valleys were gouged and deepened by glaciers. "The landscape has probably been preserved beneath the ice sheet for around 14 million years," says the paper. The research chimes with deep-sea isotope records that give insights into how Earth got its polar caps.
Changes in Earth's orbit and the formation of the frigid current that flows around Antarctica contributed to the process of placing the continent in a deep freeze.