Santa Maria Formation
It has a Late Anisian to Early Norian age ( Early to Late Triassic ) , and is notable for its fossils of early dinosaurs and other dinosauromorphs , including the herrerasaurid "Staurikosaurus" , the basal sauropodomorphs "Buriolestes" and "Saturnalia , " and the lagerpetid "Ixalerpeton" . 
<triplet> Norian <subj> Late Triassic <obj> part of <triplet> Late Triassic <subj> Norian <obj> has part <triplet> Staurikosaurus <subj> herrerasaur <obj> parent taxon