A new species of the primitive dinosaur Thecodontosaurus (Saurischia: Sauropodomorpha) and its implications for the systematics of early dinosaurs

  title={A new species of the primitive dinosaur Thecodontosaurus (Saurischia: Sauropodomorpha) and its implications for the systematics of early dinosaurs},
  author={Adam Michael Yates},
  journal={Journal of Systematic Palaeontology},
  pages={1 - 42}
  • A. Yates
  • Published 1 January 2003
  • Biology, Geography, Environmental Science
  • Journal of Systematic Palaeontology
Synopsis Juvenile sauropodomorph specimens from a Late Triassic/Early Jurassic fissure fill in Pant‐y‐ffynnon Quarry, South Wales are redescribed and named as a new species, Thecodontosaurus caducus. T. caducus can be diagnosed by the presence of pleurocoel‐like pits on the neurocentral sutures of the sixth, seventh and eighth cervical vertebrae. It is further distinguished from the type species of the genus, T. antiquus, by the primitive shape of its proximal humerus and ilium. Data from this… 

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