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ARCHELOSAURIA: ANCESTORS OF TURTLES, CROCODILES AND BIRDS

The Archelosauria are a clade of diapsids related to the earliest lizard ancestors, which quickly diverged into the groups leading to turtles on the one hand and the archosaurs on the other.

 
Pantestudines
†Pappochelys
 
Pantestudines
†Odontochelys
 
Pantestudines | Testudinata
†Proganochelys
 
Pantestudines | Testudinata | Rhaptochelydia
†Proterochersis
 
Pantestudines | Testudinata | Rhaptochelydia
†Chengyuchelys
 
Pantestudines | Testudinata | Rhaptochelydia
†Chuannanchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Australochelyidae
†Palaeochersis
 
Pantestudines | Testudinata | Rhaptochelydia | Australochelyidae
†Australochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Australochelyidae
†Waluchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia
†Kayentachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia
†Indochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia
†Eileanchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia
†Heckerochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia
†Condorchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia
†Kallokibotion
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sichuanchelyidae
†Sichuanchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sichuanchelyidae
†Mongolchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Helochelydridae
†Naomichelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Helochelydridae
†Helochelydra
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Helochelydridae
†Helochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Helochelydridae
†Solemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes
†Otwayemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes
†Chubutemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes
†Patagoniaemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes | Meiolaniidae
†Niolamia
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes | Meiolaniidae
†Ninjemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes | Meiolaniidae
†Meiolania
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Protoxinjiangchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Xinjiangchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Brodiechelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Larachelus
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Jeholochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Liaochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Manchurochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Ordosemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Sinemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Anatolemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Aurorachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Kirgizemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Macrobaena
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Osteopygis
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Yakemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Sandownidae
†Angolachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Sandownidae
†Leyvachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Sandownidae
†Sandownia
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Aplax
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Cyrtura
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Euryaspis
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Hispaniachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Neusticemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Owadowia
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Pelobatochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia
†Thalassemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Achelonia
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Chelonides
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Eurysternum
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Hydropelta
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Idiochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Palaeomedusa
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Parachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Plesochelyidae
†Plesiochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Plesochelyidae
†Hylaeochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira
†Dinochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira
†Uluops
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Compsemydidae
†Comsemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Compsemydidae
†Selenemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Arvinachelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Baena
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Cedrobaena
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Chisternon
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Denazinemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Gamerabaena
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Neurankylus
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Palatobaena
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Peckemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Plesiobaena
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Pleurosternidae
†Dorsetochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Pleurosternidae
†Glyptops
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Pleurosternidae
†Pleurosternon
 
 
Archosauromorpha
†Aenigmastropheus
 
Archosauromorpha
†Jesairosaurus
 
Archosauromorpha
†Protorosaurus
 
Archosauromorpha
†Czatkowiella
 
Archosauromorpha
†Fuyuansaurus
 
Archosauromorpha | Sharovipterygidae
†Sharovipteryx
 
Archosauromorpha | Sharovipterygidae
†Ozimek
 
Archosauromorpha | Dinocephalosauridae
†Protanystropheus
 
Archosauromorpha | Dinocephalosauridae
†Pectodens
 
Archosauromorpha | Dinocephalosauridae
†Dinocephalosaurus
 
Archosauromorpha | Tanystropheidae
†Macrocnemus
 
Archosauromorpha | Tanystropheidae
†Augustaburiania
 
Archosauromorpha | Tanystropheidae
†Amotosaurus
 
Archosauromorpha | Tanystropheidae
†Langobardisaurus
 
Archosauromorpha | Tanystropheidae
†Sclerostropheus
 
Archosauromorpha | Tanystropheidae
†Tanystropheus
 
Archosauromorpha | Crocopoda
†Teyujagua
 
Archosauromorpha | Crocopoda
†Boreopricea
 
Archosauromorpha | Crocopoda
†Tasmaniosaurus
 
Archosauromorpha | Crocopoda | Allokotosauria
†Pamelaria
 
Archosauromorpha | Crocopoda | Allokotosauria | Trilophosauridae
†Teraterpeton
 
Archosauromorpha | Crocopoda | Allokotosauria | Trilophosauridae
†Trilophosaurus
 
Archosauromorpha | Crocopoda | Allokotosauria | Trilophosauridae
†Spinosuchus
 
Archosauromorpha | Crocopoda | Allokotosauria | Azendohsauridae
†Azendohsaurus
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Colobops
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Eohyosaurus
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Howesia
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Mesosuchus
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Noteosuchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Rhynchosauridae
†Eifelosaurus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Rhynchosauridae
†Otischalkia
 
Archosauromorpha | Crocopoda | Rhynchosauria | Rhynchosauridae
†Rhynchosaurus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Bentonyx
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Fodonyx
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Langeronyx
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Hyperodapedontinae
†Hyperodapedon
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Hyperodapedontinae
†Isalorhynchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Hyperodapedontinae
†Oryctorhynchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Hyperodapedontinae
†Supradapedon
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Hyperodapedontinae
†Teyumbaita
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Stenaulorhynchidae
†Ammorhynchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Stenaulorhynchidae
†Brasinorhynchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Stenaulorhynchidae
†Elorhynchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Stenaulorhynchidae
†Mesodapedon
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Stenaulorhynchidae
†Stenaulorhynchus
 
Archosauromorpha | Crocopoda | Prolacertidae
†Kadimakara
 
Archosauromorpha | Crocopoda | Prolacertidae
†Prolacerta
 
Sir Graham