Genus: Laolestes SIMPSON, 1927
Etymology: Greek, laos, “stone”, Greek, lestes, “robber”: Fossil thief.

Species: vorax (MARSH, 1879) SIMPSON, 1927
Etymology:
= Dryolestes vorax MARSH, 1879

Holotype: USNM 2727

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 lower jaw with c, p2-4 and m1-7, much worn.

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Species: segnis (MARSH, 1887) SIMPSON, 1927
Etymology:
= Asthenodon segnis MARSH, 1887

Holotype: USNM 2862

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.
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Species: eminens SIMPSON, 1927
Etymology:

Holotype: YPM 13719

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 lower jaw in matrix, inner aspect, with I3-4, c, p1-3 and m1-8.

Referred material:

AMNH 101121: A left ramus with LM2-7, and alveoli for LM1 and LM8.

AMNH 101138: Left ramal fragment with LM2-4 and alveoli for LP3-4 and LM1.

AMNH 101124: Left jaw fragment with slightly worn LM2-6 and alveoli for LM7-8.

AMNH 101125: Right ramus with LP4-LM5 and alveoli for LI4, LC, and LP1-3.

YPM 10662: Left lower jaw with p4 and m1-4.

YPM 10658:

YPM 10660:

YPM 10661:

YPM 13720:

YPM 13721:

YPM 13723:

YPM 13724:

YPM 13728:

YPM 13726:

USNM 2727:

USNM 2729:

USNM 2731:

USNM 2732:

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Species: goodrichi (SIMPSON, 1929)
Etymology:
= Melanodon goodrichi SIMPSON, 1929

Holotype: YPM 13738

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 maxilla with UM3-5.

Referred material:

YPM 13750:

YPM 13748: Part of right maxilla with M3-5.

YPM 13749: Right maxilla with M3-4.

AMNH 101131: Left maxilla with UM1-4 and the base of UM5.

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Species: hodsoni (CLEMENS & LEES, 1971)
Etymology:
= Melanodon hodsoni CLEMENS & LEES, 1971

Holotype: W-14

Locality: An abandoned quarry approximately 200 yards south-west of the Tighe Farmhouse (93732672), Isle of Oxney, Kent County, England, Southern United Kingdom.

Horizon: Member of the Hastings Beds.

Biostratigraphy:

Age: Neocomian Subepoch, Lower Early Cretaceous Epoch, Early Cretaceous.

Material: Right upper molar.

Referred material:

W-13: Right upper molar.

 

Locality: Cliff End, bone bed, East Sussex County, England, Southern United Kingdom.

Horizon: Wealden Formation.

Biostratigraphy:

Age: Early Cretaceous.

Material:

BMNH M21101: Fragment of an upper molar.

W-5: Fragment of a right lower molar.