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The higher-level phylogeny of Archosauria (Tetrapoda: Diapsida)
TLDR
This analysis produces a well-resolved phylogeny, which recovers mostly traditional relationships within Avemetatarsalia, places Phytosauria as a basal crurotarsan clade, finds a close relationship between Aetosaurian and Crocodylomorpha, and recovers a monophyletic Rauisuchia comprised of two major subclades. Expand
Early dinosaurs: A phylogenetic study
TLDR
A new cladistic analysis of the early dinosaur radiation was performed to assess the relationships among the three major clades (Ornithischia, Sauropodomorpha and Theropoda) and to define the phylogenetic position of the basal members of the group. Expand
The origin and early evolution of dinosaurs
TLDR
The oldest unequivocal records of Dinosauria were unearthed from Late Triassic rocks accumulated over extensional rift basins in southwestern Pangea, and the group achieved a nearly global distribution by the latest Triassic, especially with the radiation of saurischian groups such as “prosauropods” and coelophysoids. Expand
The pelvic and hind limb anatomy of the stem-sauropodomorph Saturnalia tupiniquim ( Late Triassic , Brazil )
Three partial skeletons allow a nearly complete description of the sacrum, pelvic girdle, and hind limb of the stemsauropodomorph Saturnalia tupiniquim, from the Late Triassic Santa Maria Formation,Expand
THE CONTINENTAL TETRAPOD-BEARING TRIASSIC OF SOUTH BRAZIL
The Rosario do Sul Group is one of the better-known tetrapod-bearing continental deposits of Triassic age. It crops out in central Rio Grande do Sul, south Brazil, and has yielded a fauna of moreExpand
THE PECTORAL GIRDLE AND FORELIMB ANATOMY OF THE STEM-SAUROPODOMORPH SATURNALIA TUPINIQUIM (UPPER TRIASSIC, BRAZIL)
TLDR
Description of the pectoral girdle and forelimb elements of two specimens of Saturnalia tupiniquim, a stem-sauro- podomorph from the Upper Triassic Santa Maria For- mation, southern Brazil, reveals a distinctive set of plesiomorphic, derived and unique traits, which shed light on the function and phylogenetic significance of these skel- etal elements within early dinosaurs. Expand
A sauropodomorph dinosaur from the Upper Triassic (Carman) of southern Brazil
Abstract Three newly discovered skeletons from the Carnian red beds of the Santa Maria Formation, south Brazil, represent one of the oldest dinosaurs ever found. The new taxon Saturnalia tupiniquim,Expand
Studies on continental Late Triassic tetrapod biochronology. II. The Ischigualastian and a Carnian global correlation
The Ischigualastian represents a key land vertebrate faunachron for the correlation of Late Triassic terrestrial deposits worldwide, based on the abundant and diverse tetrapod fauna of theExpand
U-Pb age constraints on dinosaur rise from south Brazil
Abstract Triassic dinosaurs from South Brazil are considered as some of the oldest known worldwide, but their precise correlation to other early dinosaur occurrences have proven difficult. TheExpand
A Unique Late Triassic Dinosauromorph Assemblage Reveals Dinosaur Ancestral Anatomy and Diet
TLDR
This is the first time nearly complete dinosaur and non-dinosaur dinosauromorph remains are found together in the same excavation, clearly showing that these animals were contemporaries since the first stages of dinosaur evolution. Expand
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