Reptile Evolution
 
Tetrapoda
Ichthyostega
Reptilomorpha
Lepospondyli
 
Reptilia/Amniota
Gephyrostegus
 
Archosauromorpha
Basal Archosauromorpha
Protosynapsida
Synapsida
Protodiapsida
Diapsida
Terrestrial Younginiformes
Marine Younginiformes
Enaliosauria
Protorosauria
Archosauriformes
Euarchosauriformes
Archosauria
Dinosauria
 
Lepidosauromorpha
Urumqia clade
Cephalerpeton clade
Captorhinidae
Milleretta clade
Casea Diadectes clade
Turtle Pareiasaur clade
Lanthanosuchia
Owenettidae
Lepidosauriformes
Lepidosauria
Tritosauria
Fenestrasauria
Pterosauria
Squamata
 
 
Protodinosauria
Lewisuchus
 
Dinosauria
Herrerasaurus
 
Theropoda
Tawa
Segisaurus
Marasuchus
Procompsognathus
Coelophysis
Juravenator
Sinocalliopteryx
 
Protobirds & Birds
Aurornis
Archaeopteryx • Cathayornis
Ichthyornis
Struthio
Gallus
Phytodinosauria
Eoraptor • Panphagia
Pampadromaeus
 
Sauropodomorpha
Leyesaurus
Saturnalia
Pantydraco
Efraasia
Massospondylus
 
Ornithischia
Daemonosaurus
Pisanosaurus
Scelidosaurus • Emausaurus
Heterodontosaurus
Dryosaurus
Hexinlusaurus
Yinlong
Lesothosaurus
Agilisaurus
Scutellosaurus
 

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