Navahopus
Navahopus is an ichnogenus of dinosaur footprint that was made by an indeterminate navahopodid sauropodomorph once thought to have been a prosauropod that was alive during the Early Jurassic in southwestern United States. Two ichnospecies are known: the type ichnospecies, N. falcipollex (named in 1980) and a second species, "N. coyoteensis" (named in 2008). It is known from the Early Jurassic of Arizona (Aztec Sandstone and Navajo Sandstone), California (Aztec Sandstone) and Utah.