Genus: Siats ZANNO & MAKOVICKY, 2013
Etymology: Siats, a predatory, man-eating monster from legends of the Ute native tribe of Utah (occasionally spelled as See-atch).

Species: meekerorum ZANNO & MAKOVICKY, 2013
Etymology: In honor of the Meeker family for their endowment in support of early career paleontologists at the Field Museum.

Holotype: FMNH PR 2716

Locality: Exact coordinates on file, Emery County, Utah.

Horizon: Mussentuchit Member, Cedar Mountain Formation.

Biostratigraphy:

Age: Cenomanian Stage, Upper Gallic Subepoch, Lowermost Gulf Epoch, Middle Cretaceous.

Material: Partial postcranial skeleton of an immature individaul including portions of the axial column, pelvic girdle and hind limb.

Referred material:

FMNH PR 3059: A mid-caudal neural arch and chevron, a pedal phalanx and several indeterminate bone fragments.