Fossil remains found by a George Washington University biologist in northwestern China have been identified as a new species of small theropod, or meat-eating, dinosaur. The discovery was made by James Clark, the Ronald B. Weintraub Professor of Biology, in the Department of Biological Sciences of GW’s Columbian College of Arts and Sciences. Dr. Clark, […]
Posts Tagged ‘Russel T Sajeev’
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WFS Profile:José Fernando Bonaparte
May 3rd, 2013 
Riffin José Fernando Bonaparte, Ph.D. (born June 14, 1928), is an Argentine paleontologist who discovered a plethora of South American dinosaurs and mentored a new generation of Argentine paleontologists like Rodolfo Coria. According to University of Pennsylvania paleontologist Peter Dodson, “almost singlehandedly he’s responsible for Argentina becoming the sixth country in the world in kinds of […]
Weird Dino Ancestors Boomed After Mass Extinction
May 2nd, 2013 Riffin Dinosaurs — or at least their ancestors — may have gotten an earlier start than once believed. Bizarre four-legged creatures that resembled demonic dogs and predated dinosaurs branched out shortly after an extinction that wiped out most of life on land, according to a new study. Some of these creatures were the direct ancestors of […]
First Land Animals Kept Fishlike Jaws for Millions of Years
May 1st, 2013 Riffin Scientists studying how early land vertebrates evolved from fishes long thought that the animals developed legs for moving around on land well before their feeding systems and dietary habits changed enough to let them eat a land-based diet, but strong evidence was lacking. Now, for the first time fossil jaw measurements by Philip Anderson at […]
First Snapshot of Organisms Eating Each Other: Feast Clue to Smell of Ancient Earth
April 30th, 2013 Riffin Tiny 1,900 million-year-old fossils from rocks around Lake Superior, Canada, give the first ever snapshot of organisms eating each other and suggest what the ancient Earth would have smelled like. The fossils, preserved in Gunflint chert, capture ancient microbes in the act of feasting on a cyanobacterium-like fossil called Gunflintia — with the perforated sheaths […]
evolutionary link between birds and dinosaurs
April 29th, 2013 Riffin A small, bird-like North American dinosaur incubated its eggs in a similar way to brooding birds – bolstering the evolutionary link between birds and dinosaurs, researchers at the University of Calgary and Montana State University study have found. Among the many mysteries paleontologists have tried to uncover is how dinosaurs hatched their young. Was it […]
Ancient Snail Shells Hint at Future Global Warming
April 27th, 2013 Riffin A major global cooling event 34 million years ago chilled land as well as sea, according to climate clues found in an unusual place: fossil snail shells. The new research, published on April 22 in the journal Proceedings of the National Academy of Sciences, reveals the historical links between carbon dioxide in the atmosphere and […]
Fossils provide insight into origin of Antarctic ecosystem
April 25th, 2013 Riffin The circum-Antarctic Southern Ocean is an important region for global marine food webs and carbon cycling because of sea-ice formation and its unique plankton ecosystem. The origin of its ecosystems can be traced back to the emergence of the Antarctic ice sheets approximately 33.6 million years ago. This discovery was made by an international team […]
Iron in Primeval Seas Rusted by Bacteria
April 24th, 2013 Riffin Researchers from the University of Tübingen have been able to show for the first time how microorganisms contributed to the formation of the world’s biggest iron ore deposits. The biggest known deposits — in South Africa and Australia — are geological formations billions of years old. They are mainly composed of iron oxides — minerals […]
