Reptile Evolution
 
Tetrapoda
Ichthyostega
Reptilomorpha
Lepospondyli
 
Reptilia/Amniota
Gephyrostegus
 
Archosauromorpha
Basal Archosauromorpha
Protosynapsida
Synapsida
Mammalia
Protodiapsida
Diapsida
Terrestrial Younginiformes
Marine Younginiformes
Enaliosauria
Protorosauria
Archosauriformes
Archosauria
Dinosauria
 
Lepidosauromorpha
Urumqia clade
Cephalerpeton clade
Captorhinidae
Milleretta Limnoscelis clade
Bolosaurus Diadectes clade
Turtle Pareiasaur clade
Lanthanosuchia
Owenettidae
Lepidosauriformes
Lepidosauria
Tritosauria
Fenestrasauria • Pterosauria
Protosquamata
Squamata
 
 
Protodiapsida
Mycterosaurus
Heleosaurus
Mesenosaurus
Orovenator
Archaeovenator
Broomia
Erpetonyx
Milleropsis
 
Diapsida
Eudibamus
Aphelosaurus
Petrolacosaurus
Araeoscelis
 
Younginiformes
Spinoaequalis
Galesphyrus
Youngina SAM K7710
 

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