Brontosaurus is one of the most charismatic dinosaurs of all time, inspiring generations of children, thanks to its size and evocative name.Since 1903, the scientific community has believed that the genus Brontosaurus was, in fact, the Apatosaurus.

Now, an exhaustive new study by palaeontologists from Portugal and England provides conclusive evidence that Brontosaurus is distinct from Apatosaurus and can now be accorded its own unique genus."The differences we found between Brontosaurus and Apatosaurus were at least as numerous as the ones between other closely related genera, and much more than what you normally find between species," explained study co-author Roger Benson from University of Oxford.Therefore, lead researcher Emanuel Tschopp from the Universidade Nova de Lisboa in Portugal and colleagues have concluded that it is now possible to resurrect Brontosaurus as a genus distinct from Apatosaurus.

In the 1870s, famous palaeontologist Marsh discovered two enormous, partial skeletons of long-necked dinosaurs in Western US.Marsh described the first of these skeletons as Apatosaurus ajax, the "deceptive lizard", and the second skeleton Brontosaurus excelsus, the "noble thunder lizard".

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