Genus: Ligabueino BONAPARTE, 1996
Etymology: In honor of Dr. Giancario Ligabue, who helped so much in the knowledge of Patagonia thought his beautifully illustrated book.

Species: andesi BONAPARTE, 1996
Etymology: Andesi, because of the proximity of the fossil locality to the Cordillera de los Andes.

Holotype: MACN-N 42

Locality: La Amarga, 70 km S of Zapala, Neuquen Province, Argentina.

Horizon: Lower section of the La Amarga Formation.

Biostratigraphy:

Age: Amargan Tetrapod Assemblage, Barremian Stage, Lower Gallic Subepoch, Lower Early Cretaceous Epoch-Aptian Stage, Middle Gallic Subepoch, Upper Early Cretaceous Epoch, Early Cretaceous.

Material: Femur, ilium, pubis, phalange, neural arch of a cervical, neural arch of a dorsal, and caudal vertebrae.