Late Cretaceous (ca.72 million-year-old) rocks of the Prince Creek Formation (PCF) in northern Alaska are best known for their non-avian dinosaurs, whereas fossil mammals have only recently been described. The PCF fossil mammals are known mostly from their teeth and a few jaws that are rare and hard won! With teeth the size of sand grains, it’s no wonder that many of the PCF mammals are discovered under a microscope.

The PCF mammal fauna includes the northernmost record of metatherians (i.e., marsupials and their closest fossil relatives), Mesozoic eutherians (cousins to placental mammals), and multituberculates, an extinct lineage of mammals with rodent-like specializations. 

In this talk, Dr. Jaelyn Eberle, Curator of Fossil Vertebrates, University of Colorado Museum of Natural History & Professor, Geological Sciences, will Zoom into the Beringia Centre and introduce the tiniest members of the Late Cretaceous vertebrate fauna of Alaska and explore how to discover them and what can be learned about their paleobiology from studying their tiny teeth. Free. Register above to attend. (Note: event will start at 12 Noon Mountain Time).