(middle Albian- early Cenomanian)

The Ross River tracksites were found in 1999 by Alaskan palaeontologists driving through the Yukon on their way back from Alberta where they had just visited the Grande Cache tracksites. The dinosaur tracks were found in rocks that had been previously assigned an Eocene age. The discovery of the tracks encouraged a more rigorous workup of the stratigraphy of the area and the track-bearing rocks were found to be of middle Albian to early Cenomanian age.

Surface trampled by dinosaurs

(From Long et al., 2000)


A single theropod footprint

(From Long et al., 2000)