Guaibasaurus by Moondawg

Guaibasaurus (meaning "Guaiba Lizard") was a basal Saurischian dinosaur which lived during the Triassic.

Its fossils were found in state of Rio Grande do Sul, Brazil. Like Herrerasaurus, this dinosaur had three full fingers, and two vestigial ones on each hand.

The type species, G. candelariai, was described by Jose Bonaparte and J. Ferigolo in 1998