Genus: Vitosaura VELANDIA, EZCURRA, HECHENLEITNER, BASILICI, MARTINELLI & FIORELLI, 2025
Etymology: In honor of Victoria "Dona Vito" Romero, a lengendary woman and federal soldier from the mid-19th century. She was partner of Angel 'El Chacho' Penaloza and fought against the unitary oligarchy. Victoria was born in 1804 in the Los Llanos region, eastern plains of La Rioja, near where the holotype ws found, and Greek, saura (feminine), "lizard."

Species: colozacani VELANDIA, EZCURRA, HECHENLEITNER, BASILICI, MARTINELLI & FIORELLI, 2025
Etymology: In reference to the Colozacan Valley, the type locality of the Los llanos Formation and the site where the holotype was found, La Rioja Province, Patagonia, Argentina, where the type material was found.

Holotype: CRILAR-Pv 506

Locality: Main dinosaur quarry of the Colozacan Valley, in the vicinity of Tunacata and Guasamayo, 3 km south of the Tama Village, General Angel V. Penaloza Department, western slope of Sierra de Los Llanos Mountina range, Southestern region of La Rioja Province, Patagonia, Argentina.

Horizon: Los Llanos Formation.

Biostratigraphy:

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

Material: First dorsal centrum, anearly complete second dorsal vertebra, a partial sacrum, left ilium, pubis and ischium, adn other indetermiante bony elements.