Species: bridwelli PATTERSON, 1955
Etymology:

Holotype: CNHM-PM 933

Locality: Greenwood Canyon exposures, 2 1/2 miles southwest of Forestburg, Montague County, Texas.

Horizon: Approximately 87 feet below the top of the Trinity Sand, Trinity Group.

Biostratigraphy:

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

Material: Portion of left ramus with one molar complete save for the greater part of the paraconid, alveoli of one molar anterior to this one and of two molars posterior to it.

Referred material:

PATTERSON, 1956

Locality: Near Forestburg, Montague County, Texas.

Horizon: Trinity Sand, Trinity Group.

Biostratigraphy:

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

Material:

CNHM PM 1235: Upper anterior molar.

 

WINKLER, MURRY & JACOBS, 1989

Locality: Butler Farm, Texas.

Horizon: Trinity Group.

Biostratigraphy:

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

Material:

Number: Not given: