Investigation of the Polar Dinosaur Essays -- Exploratory Essays Resea

Investigation of the Polar DinosaurToday we screw through the evidence of fossils that dinosaur and other large reptiles once lived on each unsullied on earth. If you were a paleontologist in charge of determination fossils where would you look first? In the search for evidence the icy continent of Antarctica would be perhaps the last continent you would think to search. However, during the last xx years a remarkable number of prehistoric fossils comport been demonstrate in regions close to the South Pole. Beginning in 1960 with an expedition acquit by a man named Spitzbergen, fossilized footprints from non-avian dinosaur showed the region once had a drastically different climate. In the years that followed more fossilized be were collected in costly expeditions, often to remote areas near the jointure and South Pole. However, each find can present unique study about physiological adaptations various forms of manners made to diametral parallel temperatures during t he Mesozoic era. An article Polar Dinosaurs by Thomas H. Rich in intelligence, published in February of 2002, explores the fossil evidence and presents the following ideas about the surroundings and the types of creatures who lived and adapted to the seasonal conditions present at these polar latitudes. The ice field of the North Slope of Alaska we know today are thought to have had temperatures ranging from 13-2 degrees Celsius during the Cretaceous period. This hypothesis is based on evidence from flowering plants, and interchange fossils found from the late Cretaceous found in the region. So life around the poles existed in a climate similar to that of Portland, Oregon, which has a mingy temperature of 12 degrees, and may have gotten as cold as Alberta Canadas average of ... ...uld have probably been impossible for life in the Antarctic where a large seaway eventually developed cutting southeasterly Australia from Antarctica. The investigation of polar dinosaurs cont inues with the excavation of a new state of affairs in northern Alaska near the Colville River. Paleontologists have discovered a huge, 100 km, slab of jar that spans the last 40 million years of the Mesozoic era. Exploration of this site through tunneling is believed to present a more extensive record of polar dinosaurs as they were over the Jurassic and Cretaceous periods. (1) Works Cited1) Rich, T.H., P. Vickers-Rich & R.A. Gangloff, February 2002, Polar Dinosaurs. Science 295979-980.2) Mayell, Hillary, Researchers Melt Polar Dinosaur Mysteries, National Geographic, Febuary 2002, http//news.nationalgeographic.com/news/2002/02/0225_0225_polardinos.html