Species: robustus (MARSH, 1879) MARSH, 1887
Etymology: Latin, robustus, "robust, large."
= Tinodon robustus MARSH, 1879

Holotype: YPM 11846

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Fragmentary lower jaw with teeth.

Referred material:

YPM 10343: Fragmentary left ramus with alveoli for LC, LP1, LM2, and crowns of LP2-3, and LM1.

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Species: ferox (MARSH, 1880) MARSH, 1887
Etymology: Latin, ferox, "wild, bold, fierce."
= Tinodon ferox MARSH, 1880

Holotype: YPM 606

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Right lower jaw with teeth.

Referred material:

YPM 13626: Fragmentary skull and fragmentary lower jaw.

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Species: grandaevus SIMPSON, 1925
Etymology:

Holotype: YPM 10349

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Left maxilla and jugal, with crowns of the first 3 molars and alveoli for the last molar and the last premolar.

Referred material:

USNM 2698: Maxilla and jugal.

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Species: lulli SIMPSON, 1925
Etymology:

Holotype: YPM 13625

Locality: Reeds YPM Quarry 9, (Mammal Quarry), T22N, R77W, Sec. 12, Como Bluff, Albany County, Wyoming.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 3.

Age: Upper Part, Comobluffian age, Kimmeridgian Stage, uppermost Malm Epoch, Late Jurassic.

Material: Fragmentary right maxilla with crowns of the last premolar and of all four of the molars are preserved, although partly broken.

Referred material:

YPM 10359: Right maxilla with broken crowns of the first 2 molars and alveoli for 3 premolars.

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Species: fruitaensis RASMUSSEN & CALLISON, 1981
Etymology: In reference to the Fruita Paleontological Area, Mesa County, Colorado.

Holotype: LACM 120451

Locality: Fruita Paleontological Area, locality 4684, Mesa County, Colorado.

Horizon: Brushy Basin Member, Morrison Formation.

Biostratigraphy: Zone 4.

Age: Upper Part, Comobluffian age, Tithonian Stage, Uppermost Malm Epoch, Late Jurassic.

Material: Mandible, LC1, LP1-3, LM1-4, and alveoli for 2 incisors, left and right maxillae, frontal and fragmentary skeleton.