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Machairodus lahayishupup could easily have taken on prey weighing several tons. To identify the new saber-toothed cat species, Orcutt, who is now an assistant professor of biology at Gonzaga University, and Calede painstakingly investigated the forearm bones of lions, jaguars, tigers, and other modern big cats to determine whether their elbow shapes could reliably differentiate one species from the next. “We found we could quantify the differences on a fairly fine scale,” Calede says in a p...

According to a research paper published last week in the Journal of Mammalian Evolution, this new-found specimen provides clear evidence for a diverse range of predator fauna existing during the late Miocene of the continent that included some of the biggest felids in Earths history. Credit: Roger Witter The sabre-toothed cat was part of an early evolutionary branch that went extinct roughly 10,000 years ago, where todays house cats are an entirely different evolutionary offshoot ...

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May 03, 2021 05:50 PM EDT Scientists reported on May 3, 2021, in a new study, a giant saber-toothed cat inhabited North America (Columbus, Ohio) between 5 million and 9 million years ago, weighing about 900 pounds and capturing prey that possibly weighed 1,000 to 2,000 pounds. (Photo : Getty Images) Identification of the Cats Fossils  The researchers finalized a meticulous comparison of seven fossil specimens that are uncategorized with formerly recognized fossils and samples of bone from arou...

2k shares In the latter case, the big cat forearm was accompanied by teeth, which are generally considered a gold standard for identifying new species. The largest M. lahayishupup humerus fossils they found was more than 18 inches (46 cm) and 1.7 inches (4.3 cm) in diameter. For comparison, the upper arm bone of an average modern adult male lion is around 13 inches (33 cm) in length. US researchers named the ferocious feline Machairodus lahayishupup to honour the Cayuse people, on whose lands ...

 E-Mail IMAGE: Image of the humerus bone excavated from north central Oregon, which is now on display in the University of Oregon Museum of Natural and Cultural History. view more  Credit: Photo courtesy of John Orcutt COLUMBUS, Ohio - A giant saber-toothed cat lived in North America between 5 million and 9 million years ago, weighing up to 900 pounds and hunting prey that likely weighed 1,000 to 2,000 pounds, scientists reported today in a new study. The researchers completed a pains...