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Probainognathia

probainognathia, probainognathians
The probainognathians are members of one of the two major clades of the infraorder Eucynodontia, the other being Cynognathians The earliest forms were carnivorous and insectivorous, though some species eventually also evolved herbivorous traits The earliest and most basal Probainognathian is Lumkuia, from South Africa Three groups survived the extinction at the end of Triassic: the Tritheledontidae and Tritylodontidae, who both survived until the Jurassic—the latter possibly even into the Cretaceous Xenocretosuchus—and Mammaliaformes, who gave rise to the mammals[1]

Contents

  • 1 Classification
    • 11 Taxonomy
    • 12 Phylogeny
  • 2 See also
  • 3 References

Classification

Taxonomy

Partial skeleton of an unidentified probainognathian from Madagascar in the Field Museum of Natural History, Chicago
  • Suborder Cynodontia
    • Infraorder Eucynodontia
      • unranked Probainognathia
        • Family Ecteniniidae
        • Family Lumkuiidae
        • Superfamily Chiniquodontoidea
          • Family Chiniquodontidae
          • Family Tritheledontidae
          • Family Probainognathidae
          • unranked Prozostrodontia
            • Prozostrodon
            • Family Brasilodontidae
            • Family Dromatheriidae
            • Family Therioherpetidae
            • Family Tritylodontidae
            • unranked Mammaliaformes
              • Class Mammalia

Phylogeny

Below is a cladogram from Ruta, Botha-Brink, Mitchell and Benton 2013 showing one hypothesis of cynodont relationships:[2]

Cynodontia 


Charassognathus





Dvinia



Procynosuchus



Epicynodontia


Cynosaurus





Galesaurus



Progalesaurus






Nanictosaurus



Thrinaxodon





Platycraniellus


Eucynodontia


Cynognathia


Probainognathia


Lumkuia




Ecteninion





Aleodon



Chiniquodon





Probainognathus




Trucidocynodon




Therioherpeton



Tritheledontidae


Riograndia





Chaliminia



Elliotherium





Diarthrognathus



Pachygenelus






Brasilodontidae


Brasilitherium



Brasilodon




Tritylodontidae


Oligokyphus




Kayentatherium




Tritylodon



Beinotherium





Mammaliaformes


Sinoconodon



Morganucodon



















See also

  • Evolution of mammals
  • Prehistoric mammals
  • List of prehistoric mammals

References

  1. ^ The slow and fast steps to becoming a mammal
  2. ^ Ruta, M; Botha-Brink, J; Mitchell, S A; Benton, M J 2013 "The radiation of cynodonts and the ground plan of mammalian morphological diversity" Proceedings of the Royal Society B: Biological Sciences 280 1769: 20131865 doi:101098/rspb20131865 PMC 3768321  PMID 23986112 

probainognathia, probainognathians


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Probainognathia


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    Probainognathia beatiful post thanks!

    29.10.2014


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