Brand new "mega-carnivore" dinosaur discovered in Africa

October 26, 2017 by  
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Paleontologists have discovered fossil remains of what may have been the largest predator to ever hunt on the African savanna. The fossilized footprints were found in Lesotho, and they belong to a previously unknown “mega-carnivore” dating back to the early Jurassic Period, 200 million years ago. Although its size and demeanor was likely on par with well-known species such as Tyrannosaurus Rex and Allosaurus, the carbon dating of the fossil remains suggests this new dinosaur may have existed far earlier than its “mega-carnivore” comrades. At 22-inches-long and 20-inches-wide, the three-toed footprints are the largest of their kind ever found in Africa . The fossilized theropod (suborder of large, carnivorous dinosaur ) footprints were discovered by an international team of scientists from the University of Manchester, University of Cape Town, South Africa, and Universidade de São Paulo, Brazil. The new species, which has been named  Kayentapus ambrokholohali , would have been 10-feet-tall at the hip and 30-feet-long, almost twice the size of the average early Jurassic theropod. “The latest discovery is very exciting and sheds new light on the kind of carnivore that roamed what is now southern Africa ,” said Fabien Knoll, co-author of the study recently published in the journal PLOS ONE . “That’s because it is the first evidence of an extremely large meat-eating animal roaming a landscape otherwise dominated by a variety of herbivorous, omnivorous and much smaller carnivorous dinosaurs. It really would have been top of the food chain.” Related: Scientists discover 52-million-year-old tomatillo fossil The fossilized footprints are surrounded by current-ripple marks and cracks, which indicate that the animal likely died near a watering hole or river bank , where prey is often located. Although later predators such as T Rex were larger than Kayentapus ambrokholohali, the new theropod’s early existence is notable. “This discovery marks the first occurrence of very large carnivorous dinosaurs in the Early Jurassic of Gondwana – the prehistoric continent which would later break up and become Africa and other landmasses,” said Lara Sciscio, co-author of the study. “This makes it a significant find. Globally, these large tracks are very rare. There is only one other known site similar in age and sized tracks, which is in Poland.” Via New Atlas Images via University of Manchester

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Brand new "mega-carnivore" dinosaur discovered in Africa

Grain Production Falling as Soil Erosion Continues

August 2, 2011 by  
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Photo Credit: Mark Fischer / Creative Commons The thin layer of topsoil that covers much of the earth’s land surface is the foundation of civilization. As long as soil erosion on cropland does not exceed new soil formation, all is well. But once it does, it leads to falling soil fertility and eventually to land abandonment. As countries lose their topsoil through

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Grain Production Falling as Soil Erosion Continues

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