Genus: Cifellilestes DAVIS, JäGER, ROUGIER, TRUJILLO & CHAMBERLAIN, 2022
Etymology: In honor of Richard Cifelli for his contributions to our understanding of Mesozoic mammals, especially through decades of field efforts to improve the fossil record and Greek, lestes, "theif", a common suffix for fossil mammals.

Species: ciscoensis DAVIS, JäGER, ROUGIER, TRUJILLO & CHAMBERLAIN, 2022
Etymology: In reference to the ghost town of Cisco, Utah, close to teh type locality to which it also lends its name.

Holotype: OMNH 80538

Locality: OMNH V1728, Cisco Mammal Quarry, Grand County, Utah.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy:

Age: Tithonian Stage, Malm Epoch, Late Jurassic.

Material: Right skull fragmetn preserving partial palate and snout, and postcanine dentition.

Referred material:

OMNH 69352: Left skull fragment preserving partial palate and snout, and postcranine dentition.