Genus: Tinodon MARSH, 1879
Etymology: Greek, tino, “punish” and Greek, odon, “tooth”: punishing tooth.
= Eurylambda SIMPSON, 1929
Etymology: Greek, eurys, “broad, wide” and Greek, lambda, Greek letter “I” resembling upside down Latin “v”. Wide lambda (tooth).

Species: bellus MARSH, 1879 (Not type)
Etymology:

Holotype: YPM 11843

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 mandibular ramus with crowns of 4 molars, and alveoli for 3 more anterior teeth.

Referred material:

YPM 13644: Fragmentary mandible with 3 premolars, and 4 molars.

= Tinodon lepidus MARSH, 1879
Etymology:

Holotype: YPM 11845

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: Lower left jaw.

Referred material:

= Menacodon rarus MARSH, 1887
Etymology:

Holotype: USNM 2131

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.




= Amphidon aequicrurius SIMPSON, 1925
Etymology:
= Eurylambda aequicrurius (SIMPSON, 1925) SIMPSON, 1929
= Tinodon aequicrurius (SIMPSON, 1925) SIMPSON, 1929

Holotype: YPM 13639

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: Part of right maxilla with 1 molar.

Referred material:

ROUGIER, SPURLIN & KIK, 2003

USNM 2846: An isolated complete left upper molar.

_____________________________________________________________________________________

Species: micron ENSOM & SIGOGNEAU-RUSSELL, 2000
Etymology: Greek, micron, "very small."

Holotype: DORCM GS 1110

Locality: Sunnydown Farm Quarry near Langton Matravers, NGR SY 9822 7880, Swanage, Dorset County, England, Southern United Kingdom.

Horizon: Cherry Freshwater Member, Purbeck Limestone Formation.

Biostratigraphy:

Age: Tithonian Stage, Upper Malm Epoch, Late Jurassic.

Material: Lower left molar whose paraconid is broken.

Referred material:

DORCM GS 437, 538, 1081: Posterior- two-thirds of left molars.

DORCM GS 1078: Incomplete right posterior half (uncertain attribution).

DORCM GS 694: Upper right molar.