Antarctica Was A World Largest Swampy Rainforest Before 90 Millions Years Ago During The Cretaceous Era

Antarctica
The researchers team of Imperial College London, UK have drilled in west Antarctic they got the 90 millions years old evidences of rainforest near the south pole. Scientists have suggested that time climate was too warmer than now. By the carbon dating techniques scientist have confirmed that fossils is preserved from cretaceous era which was the time of dinosaurs. Dinosaurs were the dominant creatures in the world in Cretaceous era. According to environmental studies scientist have confirmed the carbon dioxide level was too higher than expected temperature during Cretaceous era, so there existed the world's largest rainforest.

Antarctica was the home of swampy rainforest before millions years ago and there average temperature was 12° Celsius, Which was a ideal climate temperature for growing of the rainforest. Due to high temperature of atmosphere the world's sea  level was 550 feet higher than now. That swampy rainforest covered around 900 square km area near the south pole. Even during the 6 months darkness period the swampy rainforest was able to grow which proved the earth was too warmer at that time.

Swampy Rainforest's Fossils Location
Researchers were drilling near about 550 miles far away from the south pole. Scientists have discovered the preserved roots, pollen grains and spores in west Antarctic which shows that the world was too warmer than usual temperature. So the swampy rainforest was growing in Antarctica during Cretaceous period when dinosaurs also existing. Due to presence of high levels of carbon dioxide this continent hadn't any glaciers. After long time drilling they traced the total area of the preserved swampy rainforest under glaciers. The swampy rainforest was located in between the pine Island to Thwaites glaciers which was about 500 km in long.

Results Of Fossils Analysing
After analysing the fossil roots by CT-scan techniques scientist have found a dense network of fossil roots which was well preserved and easily indicate the individual cell's structure. After analysing of the pollen grains scientist have confirmed there was growing the angiosperms (flowering plants) and after analysing the spores they confirmed  there was also gymnosperms (non-flowering plants) plants have been located in west Antarctica during the time of dinosaurs.



Antarctica's Climate During Cretaceous Era
Finally after many researchs scientists have suggested the Antarctic continent might covered with dense vegetation before 90 millions years ago. They believe the average temperature of west Antarctic was 19° celcius and average temperature of river water was 20° celcius and the average rainfall was 245 cm in every year. Scientist have confirmed the carbon dioxide concentration was 1000 ppm which was too higher than, previously assumed concentration of carbon dioxide for the Cretaceous era.