Species: shehuensis MARTIN, GOIN, SCHULTZ & GELFO, 2022
Etymology: In reference to teh river Shehuen near the locality where the screen washing was preformed.

Holotype: MPM-PV-22877

Locality: 3LAGO lcality, about 40 km SE of the town of Tres Logos, S49°45'48.2", W71°05'14.0", western central Santa Cruz Province, southern Argentina.

Horizon: Mata Amarilla Formation.

Biostratigraphy:

Age: Cenomanian Stage, Late Gallic Subepoch, Early Gulf Epoch, Middle Cretaceous.

Material: Right lower molar.