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Old November 29th, 2015 #1
Ian Smith son
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Default Canadian 'dinosaur' discovered in 1845 rebranded as a Dimetrodon

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A fossil found in Canada two centuries ago believed to be from a dinosaur has now been found to be a creature called a Dimetrodon. These large beasts actually pre-date dinosaurs by many millions of years.

For the record, the fossil that was found on Canada's Prince Edward Island in 1845 was originally believed to be from a family of dinosaurs called the Bathygnathus borealis.

However, a new study of the fossil has found that it is a Dimetrodon borealis.

Dimetrodons fossils are sometimes mistaken for dinosaurs but Dimetrodons, which could grow to 15 feet long (4.6 metres) and up to 550 pounds (250 kilograms), became extinct about 40 million years before dinosaurs existed.

They lived during the Early Permian period, 295 to 272 million years ago.

The Dimetrodon walked upon four legs and was a sail-backed beast, with the "sail" being a row of elongated spines that extended up from its vertebrae. It had a curved head, long, slender tail and big teeth of various sizes.

Lead author of the study, Kirstin Brink of the Univ. of Toronto at Mississauga, said the teeth from the fossil led to the discovery it was a Dimetrodon.
Canadian 'dinosaur' discovered in 1845 rebranded as a Dimetrodon

 
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