Species: finisterre AGNOLIN, ROLANDO, MANABE, TSUIHIJI & NOVAS, 2024
Etymology: Latin, finisterre, refers to the 'end of the earth.'
Holotype: MPM-PV-23097
Locality: Monotreme site, LA Anita Farm, S 50°31.128', W72°33.845', located approximately 30 km SW from El Calafate City, Santa Cruz Province, Argentina.
Horizon: Upper levels, Chorrillo Formation.
Biostratigraphy:
Age: Maastrichtian Stage, Late Senonian Subepoch, Late Gulf Epoch, Late Cretaceous.
Material: Incomplete right maxilla preserving 2 complete and 1 partial tooth.