Haemothermia or Archosauria? The interrelationships of mammals, birds and crocodiles

  title={Haemothermia or Archosauria? The interrelationships of mammals, birds and crocodiles},
  author={Thomas Kemp},
  journal={Zoological Journal of the Linnean Society},
  • Thomas Kemp
  • Published 1988
  • Biology
  • Zoological Journal of the Linnean Society
The recently proposed hypothesis that the living birds and the living mammals are sister groups, together forming a natural taxon Haemothermia, is contrasted with the more traditional view, that birds and crocodiles are living sister groups within the taxon Archosauria. Of the 28 or so characters claimed to be unique to the Haemothermia, several are found to be structurally or developmentally different in birds compared to mammals. Others are found to occur also in crocodiles. In either case… 

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