Genus: Kayentavenator GAY, 2010
Etymology: In reference to the Kayenta Formation were the specimen was found, and Latin, venator, "hunter."

Species: elysiae GAY, 2010
Etymology: In honor of Elysia Jennett, who has been both exceedingly helpful and supportive to the author during this research and others.

Holotype: UCMP 128659

Locality: UCMP V82309, Berkeley Locality, Willow Springs, Coconino County, Arizona.

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

Biostratigraphy:

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

Material: Several proximal caudal centra, a fragmentary left ilium, proximal ends of both pubes, the proximal ends of both femora, and the proximal end of a left fibula of a gracile subadult.