Species: kayentakatae ROWE, 1989
Etymology: Named in honor of Dr. Kathleen (“Kayenta Kay”) Smith, who discovered the type specimen and many other important fossils during the Kayenta Expeditions.

Holotype: MNA V2623

Locality: MNA Locality No. 555-3, “Rock Head North” (MCZ field no. 18/78/A, also recorded as “Foxtrot Mesa”), Latitude 35°41’39”, Longitude 111°00’51”W, from a small quarry, now silted-in, on the southwestern side of Sand Mesa, near the Adeii Eechii Cliffs, on Ward Terrace of the Little Colorado River Valley, Arizona.

Horizon: Middle third of the Silty Facies of the Kayenta Formation.

Biostratigraphy:

Age: ?Sinemurian-Pliensbachien Stage, Middle Lias Epoch, Early Jurassic.

Material: Skull and partial postcranial skeleton of a robust adult individual.
Note: Furcula (TYKOSKI, FORSTER, ROWE, SAMPSON & MUNYIKWA, 2002).