Herpetairus or Melanodon, spp. Indet. SIMPSON, 1929
= Dryolestes obtusus MARSH, 1880
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.


YPM 11819A: Left maxilla with P3 and M1-5.

Referred material:

YPM 10656B: Right maxilla with M3-5.