A Late Triassic dinosauriform from south Brazil and the origin of the ornithischian predentary bone

@article{Ferigolo2007ALT,
  title={A Late Triassic dinosauriform from south Brazil and the origin of the ornithischian predentary bone},
  author={Jorge Ferigolo and Max Cardoso Langer},
  journal={Historical Biology},
  year={2007},
  volume={19},
  pages={23 - 33}
}
The South American Late Triassic offers the most comprehensive window to the early radiation of dinosaurs. This is enhanced by the discovery of Sacisaurus agudoensis, a new dinosauriform from the Caturrita Formation of Brazil. Various morphological features suggest its close phylogenetic affinity to Silesaurus, and both may be basal ornithischian dinosaurs. Sacisaurus has a pair of elements forming the tip of its lower jaw, hypothesized to be equivalent to the ornithischian predentary. This… 
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  • Geography, Environmental Science
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Research this century has greatly improved our knowledge of the origin and early radiation of dinosaurs. The unearthing of several new dinosaurs and close outgroups from Triassic rocks from various
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