The biggest, tallest, and heaviest animals to ever walk the earth were the dinosaurs known as titanosauriformes. (Come on—"titan" is right in the name.) Brachiosaurus is probably the best known member of the family, and, at 14 meters tall, was a longtime contender for largest land animal ever, but has since been dethroned. Big as brachiosaurus was, it apparently didn't make a big impact on the fossil record, since paleontologists have struggled to understand exactly what this behemoth evolved from. Turns out, a big part of the answer was right under their nose—or should we say, in a museum cabinet.
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Written by Reuben Westmaas May 12, 2017
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