Ichnospecies: falcipollex BAIRD, 1980
Etymology: Falx, a sickle, plus pollex, thumb.
Holotype: P3.339 (MNA G2.7092)
Locality: MNA Locality 226, 2 miles north of Copper Mine Trading Post on the Kaibito Plateau, Navajo Indian Reservation, about 36’10” north, 111’12” West, Coconino County, Arizona.
Horizon: Navajo Sandstone, Glen Canyon Group.
Biostratigraphy:
Age: Sinemurian-Pliensbachian Stage, Middle Lias Epoch, Early Jurassic.
Material: 6 pedes and 6 manus.
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Ichnospecies: coyoteensis MILAN, LOOPE & BROMLEY, 2008
Etymology: After the type locality, Coyotes Buttes locality,
at the border between Utah and Arizona.
Holotype: In situ (cast at MNA).
Locality: Coyotes Buttes locality, 36°59'57.6"N, 112°00'34.6"W, at the border between Utah and Arizona.
Horizon: Navaho Sandstone.
Biostratigraphy:
Age: Early Jurassic.
Material: Trackway.