A deep dive into the Brontosaurus saga—from Marsh’s 1879 naming and the 1903 ruling that Brontosaurus was a junior synonym of Apatosaurus, through skull-mismatch displays, to the 2015 study that resurrected Brontosaurus excelsus as a distinct genus. We’ll unpack the anatomical differences that sparked the comeback—especially the robust neck and the neck-combat ideas—the tail hypotheses, and what this debate reveals about how science settles on names, while public memory keeps the giant alive. Set in the Late Jurassic Morrison Formation of Utah and Wyoming, this episode shows how settled science can be unsettled—and what that means for how we tell big ancient stories.

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