Genus: Teyuwasu KISCHLAT, 1999
Etymology: Tupi, te’yu, "lizard" and Tupi, wa’su, "big."

Species: barberenai KISCHALT, 1999
Etymology: In honor of Dr. M. C. Barberena who introduced Edio-Ernst Kischalt to the Triassic world.

Holotype: Munchen Universitat, 1933L 53-54

Locality: Sanga Grande, Alemoa, a private piece of land no. 1945, on BR-509 road, on the outskirts of the city of Santa Maria, 53°45’W, 29°40’S, Rio Grande do Sul State, Brazil.
Note: This is presumably the locality known as ‘Wald Sanga’.

Horizon: Red mudstone of the Alemoa Member, Santa Maria Formation.

Biostratigraphy:

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

Material: Right femur and right tibia.

Note: Was once part of Hoplitosuchus, HUENE, 1942.