Reptile Evolution
 
Vertebrata
Fish
 
Tetrapoda
Basal Tetrapoda
Temnospondyli
Lepospondyli
Microsauria
Reptilomorpha
 
Reptilia/Amniota
Silvanerpeton
 
Archosauromorpha
Basal Archosauromorpha
Protosynapsida
Synapsida
Protodiapsida
Mammalia
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
 
 
Marine Younginiformes
Galesphyrus
Enaliosauria
Anarosaurus
Sauropterygia
Pachypleurosaurus
Placodontia
Paraplacodus
Thalattosauriformes
Serpianosaurus
Mesosauria
Stereosternum
 
Ichthyopterygia
Wumengosaurus
Hupehsuchus
 
Thaisaurus • Xinminosaurus
Utatsusaurus
Grippia
Parvinatator
 
'Shonisaurus' sikanniensis
Guanlingsaurus
 
Mikadocephalus
Shastasaurus
 
Chaohusaurus • Besanosaurus
Qianichthyosaurus
 
Cymbospondylus
Mixosaurus
Phalarodon
 
Guizhouichthyosaurus
'Cymbospondylus' buchseri
Shonisaurus popularis
 
Platypterygius
Ichthyosaurus
Ophthalmosaurus
Eurhinosaurus
 
 

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