Genus: Bagualosaurus PRETTO, LANGER, & SCHULTZ, 2018
Etymology: The generic name is derived from the term 'Bagual', a term employed regionally in southern Brazil to refer to an animal or person of strong build or valor, and Latin, saurus, "lizard."
Species: agudoensis PRETTO, LANGER, & SCHULTZ, 2018
Etymology: In reference to the town of Agudo, Rio Grande del Sul State, Brazil, where the holotype was collected.
Holotype: BMNH P24
Locality: Janner site, Agudo, Agudo municipality, Rio Grande del Sul State, Brazil.
Horizon: Santa Maria Formation, Candelaria Sequence, Santa Maria Supersequence.
Age: Carnian Stage, Lower Late Triassic Epoch, Late Triassic.
Material: Partial skull and mandible, trunk vertebrae, sacrum, and isolated caudal vertebrae, fragmented ribs, gastralia, isolated haemal arches, both ilia, right pubis, femora, tibiae, fibulae and partial left pes.