Genus: Polesinesuchus ROBERTO-DA-SILVA, DESOJO, CABREIRA, AIRES, MÜLLER, PACHECO, & DIAS-DA-SILVA, 2014
Etymology: The generic name is derived from the name of the municipality from where the specimen was recovered (Sao Joao do Polesine, Rio Grande do Sul State), and Greek, suchos, 'crocodile'.

Species: aurelioi ROBERTO-DA-SILVA, DESOJO, CABREIRA, AIRES, MÜLLER, PACHECO, & DIAS-DA-SILVA, 014
Etymology: In honor of the physician Pedro Lucas Porcela Aurelio, a paleontology enthusiast from Rio Grande do Sul.

Holotype: ULBRAPVT003

Locality: Buriol outcrop, municipality of Sao Joao do Polesine, 29°39'34.2"S, 53°25'47.4"W, central region of the State of Rio Grande do Sul, southern Brazil.

Horizon: Santa Maria Supersequence, Santa Maria Formation.

Biostratigraphy: Hyperodapedon Assemblage Zone.

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

Material: A partial parietal, a well preserved basioccipital, cervical, dorsal, sacral and caudal vertebrae, anincomplete pectoral girdle (partial scapulae, coracoids, and interclavicle, two partial humeri and both ulnae, a right pelvic girdle (ilium, ischium, and pubis), parts of both hindlimes (femora, tibiae, both astragali, and left calcaneum), and pess (metatarsal III and V, unidentifiable phalanges, and two ungual phalantes, 10 isolated osteoderms form dorsal, ventral and appendicular region of the armor.