A massive four-legged dinosaur with a long neck that lived during the Jurassic period, now more accurately called a sauropod.
From Greek 'bronte' (thunder) and 'sauros' (lizard). Named in 1879 because of the thunderous sound scientists imagined such a gigantic creature would make when walking.
Here's the wild part: 'Brontosaurus' was removed from museums for 100 years because scientists decided they'd made a naming mistake, then in 2015 DNA studies proved the original name was actually correct.
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