Ichnospecies: browni BRANSON & MEHL, 1932
Etymology:

Holotype: University of Missouri 594

Locality: 3 miles south of Lander, Fremont County, Wyoming.

Horizon: Dakota Formation.

Biostratigraphy:

Age: Late Cretaceous.

Material: A small slab with a single clear-cut impression of the right (?) foot, 3 toed.