A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny

  title={A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment of dinosaur origin and phylogeny},
  author={Mart{\'i}n Daniel Ezcurra},
  journal={Journal of Systematic Palaeontology},
  pages={371 - 425}
  • M. Ezcurra
  • Published 30 July 2010
  • Environmental Science, Geography
  • Journal of Systematic Palaeontology
It was traditionally thought that the oldest known dinosaur assemblages were not diverse, and that their early diversification and numerical dominance over other tetrapods occurred during the latest Triassic. However, new evidence gathered from the lower levels of the Ischigualasto Fm. of Argentina challenges this view. New dinosaur remains are described from this stratigraphical unit, including the new species Chromogisaurus novasi. This taxon is distinguished from other basal dinosauriforms… 

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