Species: canadensis FOX, 1976
Etymology:

Holotype:

Locality:

Horizon:

Biostratigraphy:

Age:

Material:

Referred material:

DAVIS, CIFELLI, & COHEN, 2016

Locality: OMNH V1409, Toole County, Montana.

Horizon: Deadhorse Coulee Member, Eagle Formation.

Biostratigraphy:

Age: Santonian Stage, Senonian  Subepoch, Gulf Epoch, Late Cretaceous.

Material:

OMNH 66373: Right p2.

OMNH 66370: Right p4.

OMEN 66371: Right m1.

OMNH 66372:  Left m5.

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Species: foxi CIFELLI & MADSEN, 1986
Etymology: William Fox .

Holotype: MNA V4589

Locality: MNA locality DR1 (OMNH locality V8), approximately 24 km SSW of Escalante, Garfield County, Utah.

Horizon: Middle Wahweap Formation.

Biostratigraphy:

Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material: Fragment of right mandibular ramus with one complete molar, probably LM4.

Hypodigm:

V4522: Right lower molar, probably LM7.

 

CIFELLI & GORDON, 1999

Locality: OMNH locality VII, Garfield and Kane Counties, Utah.

Horizon: Wahweap Formation.

Biostratigraphy:

Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

OMNH 20135: Left m4.

MNA V4653: Left M4.

 

Locality: OMNH locality V16, Garfield and Kane Counties, Utah.

Horizon: Wahweap Formation.

Biostratigraphy:

Age: Aquilian in age, Lower Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material:

OMNH 23358: Left m7.

 

EATON, 1993

Locality: MNA locality 1073, near the junction of Mill Creek and the East Fork of the Sevier River, Podunk Creek, USGS 7.5 minute Quadrangle, Paunsaugunt Plateau, Utah.

Horizon: Upper Kaiparowits Formation.

Biostratigraphy:

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

Material:

MNA V6461: m7?

 

= Symmetrodontoides sp. cf. S. foxi EATON, 2006

Locality: UMNH VP Locality 10 (Paul's Locality), Cedar Canyon, Markagunt Plateau, Iron County, southwestern Utah.

Horizon: Tibbet Canyon Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage or Lower Coniacian Stage, lowest Senonian subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

UMNH VP 14062: m4?

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Species: oligodontos CIFELLI, 1990
Etymology:

Holotype: MNA 5789

Locality: MNA locality 995, Garfield County, Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material: Posterior right lower molar, probably LM7.

Referred material:

Locality: OMNH locality V4, Garfield County, Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

OMNH 20381: Corroded right lower molar probably LM4 or 5.

 

CIFELLI & GORDON, 1999

Locality: OMNH locality V60, Garfield County, Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

OMNH 29039: Right M6.

OMNH 29040: Left M2.

 

Locality: OMNH V843 (= MNA 995), Garfield County, Utah.

Horizon: Smoky Hollow Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Upper Turonian Stage, upper Gallic subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

MNA V6755: Left m4.

OMNH 29523: Left m2 in dentary fragment.

OMNH 29525: Left M1.

MNA V6047: Left m2.

MNA V6048: Left M2.

 

= Symmertrodontoides sp. cf. S. oligodontos CIFFELI & GORDON, 1999

Locality: OMNH locality V856, Garfield County, Utah.

Horizon: John Henry Member, Straight Cliffs Formation.

Biostratigraphy:

Age: Lower or Middle Coniacian Stage, lowest Senonian subepoch, lower Gulf Epoch, Early Late Cretaceous.

Material:

OMNH 32874: Right M1.