Show notes

Andy, Bret, and Bryce dive into what makes Montana’s Two Medicine Formation one of the most scientifically important Late Cretaceous ecosystems in North America. They explain why the formation is named after the Two Medicine River, how volcanic ash and bentonite clay shape fossil preservation, and why baby dinosaur bones, eggs, and nesting sites are unusually common there. The team walks through each member of the formation, the dinosaurs found in them, and how new research is reshaping our understanding of this ancient environment. From hadrosaurs and ceratopsians to raptors, armored dinosaurs, mammals, and pterosaurs, they explore the full menagerie of Two Medicine life and discuss their own ongoing dig at “The Graveyard,” a multitaxic bone bed revealing new species and new mysteries. The result is a lively, informative tour of a formation that continues to surprise paleontologists every year.

Etude 13 LaSalle by ⁠Blue Dot Sessions