Early dinosaurs: A phylogenetic study

@article{Langer2006EarlyDA,
  title={Early dinosaurs: A phylogenetic study},
  author={Max Cardoso Langer and Michael J. Benton},
  journal={Journal of Systematic Palaeontology},
  year={2006},
  volume={4},
  pages={309 - 358}
}
  • M. Langer, M. Benton
  • Published 1 January 2006
  • Biology, Geography, Environmental Science
  • Journal of Systematic Palaeontology
Synopsis Early dinosaur evolution has been the subject of several phylogenetic studies and the position of certain basal forms is currently debated. This is the case for the oldest known members of the group, excavated from the Late Triassic Ischigualastian beds of South America, such as Herrerasaurus, Eoraptor, Pisanosaurus, Saturnalia and Staurikosaurus. A new cladistic analysis of the early dinosaur radiation was performed to assess the relationships among the three major clades… 
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Systematics and evolutionary history of proterosuchian archosauriforms
TLDR
The results obtained here suggest that the evolutionary history of the archosauriforms during the Early Triassic can be subdivided into a first phase characterized by the short-lived “disaster-clade” Proterosuchidae and a second phase that witnessed the initial morphological and probably palaeoecological diversification of the group.
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