Reptile Evolution
 
Tetrapoda
Ichthyostega
Reptilomorpha
Lepospondyli
 
Reptilia/Amniota
Gephyrostegus
 
Archosauromorpha
Basal Archosauromorpha
Protosynapsida
Synapsida
Mammalia
Protodiapsida
Diapsida
Terrestrial Younginiformes
Marine Younginiformes
Enaliosauria
Protorosauria
Archosauriformes
Euarchosauriformes
Archosauria
Dinosauria / Theropoda
Birds / Aves
Phytodinosauria
 
Lepidosauromorpha
Urumqia clade
Cephalerpeton clade
Captorhinidae
Milleretta Limnoscelis clade
Bolosaurus Diadectes clade
Turtle Pareiasaur clade
Lanthanosuchia
Owenettidae
Lepidosauriformes
Lepidosauria
Tritosauria
Fenestrasauria • Pterosauria
Protosquamata
Squamata
 
 
Protodinosauria
Dinosauria
Theropoda
Protobirds & Birds
 
Phytodinosauria
Eodromaeus
Eoraptor • Panphagia
Pampadromaeus
 
Sauropodomorpha
Leyesaurus
Saturnalia
Pantydraco
Efraasia
Massospondylus
 
Ornithischia
Chilesaurus
Daemonosaurus
Pisanosaurus • Haya
Scelidosaurus and Emausaurus
Minmi
Heterodontosaurus
Agilisaurus
Lesothosaurus
Scutellosaurus
Stegosaurus
Dryosaurus • Edmontosaurus
Hexinlusaurus
Yinlong • Psittacosaurus
Triceratops • Chasmosaurus
 

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