A new look at the mammalian fauna of the Prince Creek Formation, North Slope, AK

Xochitl Muñoz et al.
Wed, 22 Apr 2026 18:29:58 PDT

The Prince Creek Formation is famous for polar dinosaurs, but it also contains ancient mammals, four species of which were previously known from studying teeth. However, we have found a greater diversity and identified nine morphotypes of mammals from jaws and skeletal material, more than doubling the previous known number.