Genus: Acheroraptor EVANS, LARSON, & CURRIE, 2013
Etymology: The generic name is derived from Acheron, the River of Pain in the underworld of ancient Greek mythology, in reference to the Hell Creek Formation; and Latin, raptor, "robber"; a suffix used in previously named dromaeosaurids. The name Acheron has been deliberately shortened in the combination.

Species: temertyorum EVANS, LARSON & CURRIE, 2013
Etymology: In honor of James and Louise Temerty for thier outstanding service and contributions to the Royal Ontario Museum.

Holotype: ROM 63777

Locality: Approximately 45 km southwest of the town of Jordan, Garfield County, Montana.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: An almost complete right maxilla, missing only the posterior portion of the jugal ramus and an associated maxillary tooth complete with root.

Reconstruction of the skull.

Referred material:

ROM 63378: An almost complete left dentary (missing only the teeth and a small posterior portion of the bone) that may pertain to the same individual as ROM 63777.

 

SNYDER, McLAIN, WOOD & CHADWICK, 2020

Locality: Hanson Ranch (HR), northern Niobrara County, Eastern Wyoming.

Horizon: Lance Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

Number: Not given: 128 teeth.

 

STEIN, 2021

Locality: Tooth Draw Deposit, Butte County, South Dakota.

Horizon: Hell Creek Formation.

Biostratigraphy:

Age: Lancian age, upper Maastrichtian Stage, uppermost Senonian subepoch, Upper Gulf Epoch, Late Cretaceous.

Material:

TD-12-090: Tooth.

PARC-TD-15-205: Well preserved manus ungul.

Numbers: Not given: Metatarsals, sevral phalanges and several unguals.

_____________________________________________________________________________________