Genus: Bolg WOOLLEY, SERTICH, MELSTROM, IRMIS & SMITH, 2025
Etymology: Bolg, after the fictional golbin-prince and secondary antagonist in The Hobbit, a novel written by one of the great literary monster creators of the 20th century, J. R. R. Tolkien. Named after a goblin due to the monstersaurian affinities of the holotype specimen UMNH VP 16266.

Species: amondol WOOLLEY, SERTICH, MELSTROM, IRMIS & SMITH, 2025
Etymology: Derived from the fictional Elvish Sindarin language in J. R. R. Tolkien's The Hobit, The Lord of the Rings, The Silmarillon and other works. A combination of Amon (Elvish, Sindarin), amondol, "mound", and Elvish, Sindarin, -dol, "head", named for the mound-like, fused osteoderms that covered the skull (maxilla, jugal).

Holotype: UMNH VP 16266

Locality: UMNH VP LOC 733, Fossil Ridge field area, Kane County, Utah.

Horizon: Lower half of the middle unit of the Kaiparowits Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian Subepoch, Gulf Epoch, Late Cretaceous.

Material: A partial right jugal, anterior tip of the right vomer, a partial left palatine, incomplete right quadrate, fragments of the left and right dentaries, maxilla, premaxilla, jugal, posterior thoracic vertebrae, lumbar vertebrae, proximal, middle and distal caudal vertebrae, portions of the left and right scaulocoracoid, a mostely complte left ilum, a metapodal (possibly a radiale), as well as numerous associated vertebrial, rib, and limb fragments.

Breakdown as follows:

UMNH VP 16266.1: Nasal.

UMNH VP 16266.2: Jugal.

UMNH VP 16266.3: Fragment of premaxilla.

UMNH VP 16266.4: Fragmetn of maxilla.

UMNH VP 16266.5: Posterior portion of the left dentary.

UMNH VP 16266.6: Medial portion of the middle ramus of the right dentary.

UMNH VP 16266.7: Partial right quadrate.

UMNH VP 16266.8: A more porximal caudal vertebra.

UMNH VP 16266.9, .11, .12: Either posterior cervical or anterior dorsal vertebrae.

UMNH VP 16266.10, .16: Thoracic vertebrae.

UMNH VP 16266.13, .15: Probably 2 posteriormost dorsal vertebrae.

UMNH VP 16266.23: Mostily complete left ilium.

UMNH VP 16266.24: Incomplete girdle element.

UMNH VP 16266.25: Anterior tip of the right vomer.

UMNH VP 16266.25: Portion of the left palatine.

UMNH VP 16266.27: Dorsal and left-lateral portion of an anterior caudal neural arch.

UMNH VP 16266.28: A partial middle caudal vertebra.

UMNH VP 16266.29, .30: incomplete distal caudal vertebrae.

UMNH VP 16266.31, .32, .33: Fragmetnary distal caudal centra.

UMNH VP 16266.34: Portions of the glenoid fossae of a left scauplocoraoid.

UMNH VP 16266.35: Portions of the glenoid fossae of a right scauplocoraoid.

UMNH VP 16266.36: A carpal element, possible a radiale.

Number: Not given: At least 9 additional dorsal vertebrae.