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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.

 
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Pantestudines
†Pappochelys
 
Animal picture.
Pantestudines
†Eorhynchochelys
 
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Pantestudines
†Odontochelys
 
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Pantestudines | Testudinata
†Proganochelys
 
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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
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia
†Kallokibotion
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sichuanchelyidae
†Sichuanchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sichuanchelyidae
†Mongolchelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Helochelydridae
†Naomichelys
 
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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
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes
†Patagoniaemys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes | Meiolaniidae
†Niolamia
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes | Meiolaniidae
†Ninjemys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Meiolaniformes | Meiolaniidae
†Meiolania
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Protoxinjiangchelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Xinjiangchelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Brodiechelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Xinjiangchelyidiae
†Larachelus
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Jeholochelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Liaochelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Sinemydidae
†Manchurochelys
 
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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
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Osteopygis
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Macrobaenidae
†Yakemys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Sandownidae
†Angolachelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Sandownidae
†Leyvachelys
 
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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
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Thalassemydidae
†Thalassemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Achelonia
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Chelonides
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Eurysternum
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Hydropelta
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Idiochelys
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Palaeomedusa
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Parachelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Eurysternidae
†Solnhofia
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Plesochelyidae
†Plesiochelys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Angolachelonia | Thalassochelydia | Plesochelyidae
†Hylaeochelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira
†Dinochelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira
†Uluops
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Compsemydidae
†Compsemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Compsemydidae
†Selenemys
 
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Arvinachelys
 
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Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Baena
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Baenidae
†Cedrobaena
 
Animal picture.
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
 
Animal picture.
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
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Pleurosternidae
†Dorsetochelys
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Pleurosternidae
†Glyptops
 
Animal picture.
Pantestudines | Testudinata | Rhaptochelydia | Mesochelydia | Perichelydia | Paracryptodira | Baenoidea | Pleurosternidae
†Pleurosternon
 
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TESTUDINES
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Animal picture.
Archosauromorpha
†Aenigmastropheus
 
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Archosauromorpha
†Jesairosaurus
 
Animal picture.
Archosauromorpha
†Protorosaurus
 
Archosauromorpha
†Czatkowiella
 
Archosauromorpha
†Fuyuansaurus
 
Animal picture.
Archosauromorpha | Sharovipterygidae
†Sharovipteryx
 
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Archosauromorpha | Sharovipterygidae
†Ozimek
 
Archosauromorpha | Dinocephalosauridae
†Protanystropheus
 
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Archosauromorpha | Dinocephalosauridae
†Pectodens
 
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Archosauromorpha | Dinocephalosauridae
†Dinocephalosaurus
 
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Archosauromorpha | Tanystropheidae
†Macrocnemus
 
Archosauromorpha | Tanystropheidae
†Augustaburiania
 
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Archosauromorpha | Tanystropheidae
†Amotosaurus
 
Animal picture.
Archosauromorpha | Tanystropheidae
†Langobardisaurus
 
Archosauromorpha | Tanystropheidae
†Sclerostropheus
 
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Archosauromorpha | Tanystropheidae
†Tanystropheus
 
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Archosauromorpha | Crocopoda
†Teyujagua
 
Archosauromorpha | Crocopoda
†Boreopricea
 
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Archosauromorpha | Crocopoda
†Tasmaniosaurus
 
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Archosauromorpha | Crocopoda | Allokotosauria
†Pamelaria
 
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Archosauromorpha | Crocopoda | Allokotosauria | Trilophosauridae
†Teraterpeton
 
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Archosauromorpha | Crocopoda | Allokotosauria | Trilophosauridae
†Trilophosaurus
 
Archosauromorpha | Crocopoda | Allokotosauria | Trilophosauridae
†Spinosuchus
 
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Archosauromorpha | Crocopoda | Allokotosauria | Azendohsauridae
†Azendohsaurus
 
Animal picture.
Archosauromorpha | Crocopoda | Allokotosauria | Azendohsauridae
†Shringasaurus
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Eohyosaurus
 
Animal picture.
Archosauromorpha | Crocopoda | Rhynchosauria
†Howesia
 
Archosauromorpha | Crocopoda | Rhynchosauria
†Mesosuchus
 
Animal picture.
Archosauromorpha | Crocopoda | Rhynchosauria
†Noteosuchus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Rhynchosauridae
†Eifelosaurus
 
Archosauromorpha | Crocopoda | Rhynchosauria | Rhynchosauridae
†Otischalkia
 
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Archosauromorpha | Crocopoda | Rhynchosauria | Rhynchosauridae
†Rhynchosaurus
 
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Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Bentonyx
 
Animal picture.
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Fodonyx
 
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Langeronyx
 
Animal picture.
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae
†Beesiiwo
 
Animal picture.
Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Hyperodapedontinae
†Hyperodapedon
 
Animal picture.
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
 
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Archosauromorpha | Crocopoda | Rhynchosauria | Hyperodapedontidae | Stenaulorhynchidae
†Stenaulorhynchus
 
Animal picture.
Archosauromorpha | Crocopoda | Prolacertidae
†Kadimakara
 
Animal picture.
Archosauromorpha | Crocopoda | Prolacertidae
†Prolacerta
 
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ARCHOSAURIFORMES
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Sir Graham