Species: morrowi EATON, 1993
Etymology:

Holotype: MNA V5825

Locality: MNA locality 1067, Paunsaugunt Plateau, Utah.

Horizon: Dakota Formation.

Biostratigraphy:

Age: Age? Stage?, upper Middle Campanian Stage, upper middle Senonian subepoch, lower Gulf Epoch, Middle Cretaceous.

Material: RMx.

Referred material:

MNA V5354: Rmx.

MNA V5374: Lmx.

MNA V5378: Rmx.

MNA V5824: RMx.

MNA V5827: RM1?

MNA V5828: Lmx.

MNA V6023: Rmx.

MNA V6032: Rmx.

MNA V6037: LMx.

MNA V6038: Lmx.

MNA V6042: Rmx.

MNA V6096: Rmx.

MNA V6318: RMx.

 

Locality: MNA locality 1071, Paunsaugunt Plateau, Utah.

Horizon: Dakota Formation.

Biostratigraphy:

Age: Age? Stage?, upper Middle Campanian Stage, upper middle Senonian subepoch, lower Gulf Epoch, Middle Cretaceous.

Material:

MNA V5394: Lmx.

 

Locality: MNA Loc. 1064, Bryce Valley, east of Bryce Canyon National Park, southwestern Utah.

Horizon: Dakota Formation.

Biostratigraphy:

Age: Age? Stage?, upper Middle Campanian Stage, upper middle Senonian subepoch, lower Gulf Epoch, Middle Cretaceous.

Material:

MNA V5386: Lmx.

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Species: pertritus CIFELLI, COHEN, & DAVIS, 2016
Etymology: Latin, pertritus, "very worn," in allusion to the heavy oclusal and apical wear that characterizes known molars of the species.

Holotype: OMNH 33247

Locality: OMNH V695, San Rafael Swell, Emery County, Utah.

Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.

Biostratigraphy:

Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material: Left upper molar lacking the protocone.

Referred material:

OMNH 27509: Mesiobuccal corner of the right Mx.

OMNH 27631: Fragment of Mx.

OMNH 27544: Lef m1.

Locality: OMNH V213, San Rafael Swell, Emery County, Utah.

Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.

Biostratigraphy:

Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 24148: Talonid of right mx.

Locality: OMNH V234, San Rafael Swell, Emery County, Utah.

Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.

Biostratigraphy:

Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 25627: Talonid of left mx.

Locality: OMNH V235, San Rafael Swell, Emery County, Utah.

Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.

Biostratigraphy:

Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 25627: Disobuccal corner of left Mz.

Locality: OMNH V239, San Rafael Swell, Emery County, Utah.

Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.

Biostratigraphy:

Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 25813: Left last upper molar lacking the protocone.

OMNH 25798: Left ?last lower molar.

OMNH 25803: Talonid of right mx.

Locality: OMNH V794, San Rafael Swell, Emery County, Utah.

Horizon: Mussentuchit Member, Uppermost Cedar Mountain Formation.

Biostratigraphy:

Age: Mussentuchitan age, Uppermost Albian-Lowermost Cenomanian Stage, Upper Gallic subepoch, Lowest Gulf Epoch, Late Early to Early Middle Cretaceous.

Material:

OMNH 27641: Left Mx lacking mesiobucal corner.

OMNH 27640: Right Mx lacking the protocone and mesiobuccal corner.

OMNH 27644: Left Mx lacking the protocone and distobuccal corner.

OMNH 33998: Talonid of right mx.

OMNH 33997: Trigonid of right m1?

OMNH 30588: Talonid of right mx.