Genus: Olkasuchus SOTOMAYOR, LEARDI, DESOJO, GAETANO, OTERO & APALDETTI, 2026
Etymology: Kakan (from the Diaguita and Capayan native peopole, which inhabited the southewestern La Rioja, Arentina), olka, "red", and Greek, soukhos (Suchus), "the Greek name for the Egyptian crocodile god Sobek".

Species: walasto SOTOMAYOR, LEARDI, DESOJO, GAETANO, OTERO & APALDETTI, 2026
Etymology: Kakan (from the Diaguita and Capayan native peopole, which inhabited the southewestern La Rioja, Arentina), walasto, "corner", refering to the type locality, "La Esquina" (that transalte into corner in Spanish).

Holotype: PULR-V 246

Locality: La Esquina Locality, Talampaya National Park, La Rioja Porvince, northwestern Argentina.

Horizon: Upper thired of the Los Colorados Formation.

Biostratigraphy: Tarjadia AZ

Age: Norian Stage, Late Triassic Epoch, Late Triassic.

Material: Axial, appendicular and osteoderm remains, paramedian and lateral covering the presacral sacral, and caudal regions, articulated ventral osteoderms, and fragments of osteoderms, posterior trunk vertebrae, 2 articulated sacral vertebrae, 5 isolated ribs, incomplete right scapulocoracoid, the distal end of the right humerus, an unattached pelvic girdle (composed of the right ilium and the proximal ends of the pubis and the ischium, both disarticulated of the ilium), an almost complete right femur, a proximal and a distal end of the right tibia, adn proximal end o fthe right fibula.