Genus: Montanazhdarcho PADIAN, RICQLES & HORNER, 1994
Etymology: In reference to the state of Montana, + Azhdarcho.

Species: minor PADIAN, RICQLES & HORNER, 1994
Etymology: Latin, minor, "minor or small."

Holotype: MOR 691

Locality: Blackfoot Nation, Glacier County, Montana.
Note: Data available to qualified investigators on application to the MOR.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material: Partial snout, crushed cervical vertebra, right scapulocoracoid and a left wing including part of the scapulocoracoid, humerus, ulna and most of the radius, the proximal and partial distal carpals, the wing metacarpal and most of the wing finger.

Referred material:

= Pterodactyloid pterosaur PADIAN, 1984

Locality: Near “Egg Mountain”, near Chateau, Teton County, Montana.

Horizon: Two Medicine Formation.

Biostratigraphy:

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

Material:

YPM PU 22446 : Deltopectoral crest of a left humerus, distal end of left humerus, left distal carpal, fragmentary left scapula, distal end of radius, and possible crushed shaft of third wing-phalanx.