Reptile Evolution
 
Tetrapoda
Basal Tetrapoda
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
 
Aphelosaurus
 

Falconnet J and Steyer J-S 2007. Revision, osteology and locomotion of Aphelosaurus, an enigmatic reptile from the Lower Permian of France. Journal of Morphology (abstract of the 8th International Congress of Vertebrate Morphology, Paris, July 2007): 38.

Gervais P 1859. Zoologie et paléontologie française – 2e édition. Bertrand, Paris, 544 pp.

Steyer S 2012. Earth before the dinosaurs. Indiana University Press, 182 pp.

 
Protodiapsida
Mycterosaurus
Heleosaurus
Mesenosaurus
Orovenator
Archaeovenator
Broomia
Erpetonyx
Milleropsis
 
Diapsida
Eudibamus
Aphelosaurus
Petrolacosaurus
Araeoscelis
 
Younginiformes
Spinoaequalis
Galesphyrus
Youngina SAM K7710

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