Genus: Linhenykus XU, SULLIVAN, PITTMAN, CHOINERE, HONE, UPCHURCH, TAN, XIAO, TAN, & Han, 2011
Etymology: The generic name is a combination of Linhe (a city in Inner Mongolia near the area where the specimen was found), and Greek, onyx, "claw."

Species: monodactylus XU, SULLIVAN, PITTMAN, CHOINERE, HONE, UPCHURCH, TAN, XIAO, TAN, & Han, 2011
Etymology: Greek, mono, "single" and Greek, dactylos, "finger." The specific name refers to the presence of a single finger in this animal.

Holotype: IVPP V17608

Locality: "Gate area", Bayan Mandahu, north of the city of Linhe, Inner Mongolia, China.

Horizon: Wulansuhai Formation.

Biostratigraphy:

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

Material: A partial postcranial skeleton including cervical, dorsal, sacral, and caudal vertebrae, the left scapulocoracoid, a nearly complete sacrum, much of the forelimbs, a partial pelvis, nearly complete hindlmbs, and some unidentified fragments.

Referred material:

HONE, CHOINIERE, TAN & XU, 2013

IVPP V 18190: A partial distal left pes, including a complete pedal digit I, the distal ends of mts II, III, and IV, and pedal phalanges II-1, II-2, partial II-3, III-1, and IV-1 to 3.