Break out the prehistoric cake, because the Brontosaurus has officially joined the dinosaur party.
In research published Tuesday in the science journal Peer J, researchers revealed their findings that the Brontosaurus and Apatosaurus likely belonged to the same genus and lived side-by-side 150 million years ago. This breaks the widely-believed notion that the Brontosaurus and Apatosaurus are in fact the same dinosaur.
"Until very recently, the claim that Brontosaurus was the same as Apatosaurus was completely reasonable, based on the knowledge we had," Emanuel Tschopp, one of the researchers from the New University of Lisbon in Portugal, said in a statement obtained by ABC News.
Some of the distinctions that the researchers found were that the Brontosaurus has a sleeker neck than the Apatosaurus, and that the Brontosaurus was noted for a longer bone in its ankles.
"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," Roger Benson, a professor at the University of Oxford and co-author of the study, said in a statement.
The origin of the Brontosaurus goes back to the 1870s, when paleontologist Othniel Marsh discovered the Apatosaurus, and then the brontosaurus two years later. However, it was ruled in 1903 that the two skeletons were too similar, and were different species of the same genus.
It's official! Brontosaurus finally validated as a dinosaur
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