Species: trinquei ROGERS, 2003
Etymology: In honor of Lance Trinque, a dedicated field assistant who helped in discovery and excavation of SMU locality 331.

Holotype: SMU 75278

Locality: SMU locality 331, about 100 kilometers southwest of Fort Wort, Erath County, Texas.

Horizon: Glen Rose Formation, 2 meters blow the buried contact with the overlying Paluxy Formation, Trinity Group.

Biostratigraphy:

Age: Comanchean, Lower Cashenranchian age, Early to Middle Albian Stage, Middle Gallic subepoch, upper Early Cretaceous Epoch, Early Cretaceous.

Material: Right maxilla.

Referred material:

At least 13 individuals.

SMU 75009, 75277-75278, 75289-75291: Maxille.

SMU 75278-75279: Dentaries.

SMU 75092, 75103: Teeeth.

SMU 75299: Associated left and right dentaries and surangulars.

SMU 75290, 75313-75315: Surangulars.

SMU 75302, 75304-75307: Jugals.

SMU 75308-75309, 75311-75312: Frontals.

SMU 75303: Squamosal.

SMU 75310: Postorbital.

SMU 75090: Parietal.

SMU 75281-75286: Quadrates.

SMU 75287: Basioccipital.

SMU 75103-75111: Cervical vertebrae.

SMU 75153-75168: Dorsal vertebrae.

SMU 75112-75115: Sacral vertebrae.

SMU 75116-75150: Caudal vertebrae.

SMU 75169-75201: Ribs.

SMU 75068-75076: Scapulae.

SMU 75063-75067: Coracoids.

SMU 75028-75033: Humerii.

SMU 75262-75268, 72595: Radii.

SMU 75050-75052: Ulnae.

SMU 75272 : Radiale.

SMU 75274, 75294: Phalanges.

SMU 75273: Ungual.

SMU 75055-75059: Ilia.

SMU 75060-75063: Ischia.

SMU 75296: Pubis.

SMU 75010-75026: Femora.

SMU 75034-75047: Tibiae.

SMU 75048-75049: Fibulae.

SMU 75269-75271: Metatarsals.

SMU 75293, 75316:

SMU 75276: Calcaneum.

SMU 75202-75260: Osteoderms.