By Katherine J. Wu/Smithsonianmag.com
About 145 million to 200 million years ago during the Jurassic Period, Earth’s creatures had to contend with one of the most powerful, ferocious predators that ever lived—a clawed, flesh-eating, sharp-toothed behemoth of a dinosaur that stalked the floodplains of what would become Western North America.
Despite what Hollywood might have you think, we’re not talking about Tyrannosaurus rex, which wouldn’t appear until the Cretaceous, the period immediately following the Jurassic. But as researchers reported last week in the journal PeerJ, a newly-described species called Allosaurus jimmadseni, which lived some 70 million years before its more famous carnivorous cousin, certainly made for a worthy opening act. A. jimmadseni roamed the North American continent between 152 million years ago and 157 million years ago, making it the oldest species of Allosaurus discovered so far, reports George Dvorsky for Gizmodo.
Like other members of the Allosaurus genus, A. jimmadseni boasted a suite of truly terrifying features. Study co-authors Mark Loewen, a paleontologist at the Natural History Museum of Utah, and Daniel Chure, a paleontologist at the Dinosaur National Monument in Utah, estimate that A. jimmadseni weighed up to 4,000 pounds and reached 26 to 29 feet in length at full size. ……
Carol graduated from Riverside White Cross School of Nursing in Columbus, Ohio and received her diploma as a registered nurse. She attended Bowling Green State University where she received a Bachelor of Arts Degree in History and Literature. She attended the University of Toledo, College of Nursing, and received a Master’s of Nursing Science Degree as an Educator.
She has traveled extensively, is a photographer, and writes on medical issues. Carol has three children RJ, Katherine, and Stephen – one daughter-in-law; Katie – two granddaughters; Isabella Marianna and Zoe Olivia – and one grandson, Alexander Paul. She also shares her life with her husband Gordon Duff, many cats, and two rescues.
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Pangea appears to be correct. I had to look that up.
Wasn’t there just one super land mass at that time? Not sure what it was called?
Edward, Pangea?
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