Deep Dive - Our State Fossil

Long before South Dakota was known for bison, pheasants, or even presidents carved in stone—it was home to one of the most iconic dinosaurs to ever walk the earth: the Triceratops.

In this episode we take a deep dive into the story of South Dakota’s state fossil, officially designated in 1988. From fossil-rich digs in the Badlands and Harding County to museum displays in Rapid City and Lemmon, this three-horned herbivore has left its mark on our prehistoric past—and our modern identity.

We’ll explore jaw-dropping discoveries like the 3,000-pound skull unearthed in 2020 and the controversial sale of “Big John,” the world’s largest Triceratops found right here in Mud Butte. You’ll also hear how museums and schools across the state are using these ancient bones to inspire future scientists.

Whether you're a dino-loving kid at heart or just curious about what lies beneath South Dakota’s soil, this episode is packed with ancient giants, modern wonder, and a fossil-fueled legacy you won’t forget.