Species: ieujensis HERRERA, AGNOLIN, ROZADILA, LO COCO, MANABE, TSUIHIJI, & NOVAS, 2023
Etymology: Aoni Kenk, ieuj, "snow."

Holotype: MPM-PV-23086

Locality: La Anita Farm, 50°30'38.59"S, 72°33'37.84", approximately 30 km SW from El Calafate City, Santa Cruz PRovince, Argentina.

Horizon: Chorrillo Formation.

Biostratigraphy:

Age: Lower Maastrichtian Stage, Upper Senonian Subepoch, Upper Gulf Epoch, Late Cretaceous.

Material: Distal end of a right humerus with flexor process slightly eroded.