Sub-order 2. 

 Cryptodira. 



Eosphargis. Eocene. 



Protostega. Upper Cretaceous. 



Archelon. Cretaceous. 



Lytoloma. Upper Cretaceous and Eocene. 



Tropidemys. Jurrasic. 



Chelydra. Miocene to Recent. 



Adocus. Cretaceous. 



Stylemys. Oligocene to Pliocene. 



Hadrianus. Eocene. 



Testudo. Miocene to Recent. 

 Sub-order 3. 

 Pleurodira. 



Plesiochelys. Upper Jurassic. 

 Sub-order 4. 

 Amphichelydia. 



Platychelys. Upper Jurassic. 



Order VII. 

 CROCODILIA (Triassic to Recent Reptiles). 

 Sub-order 1. 

 Parasuchia. 



Parasuchus. Triassic. 

 Sub-order 2. 



PSEUDOSUCHIA. 



Typothorax. Triassic. 

 Sub-order 3. 

 Mesosuchia. 



Teleosaurus. Jurassic. 



Atoposaurus. Jurassic. 

 Sub-order 4. 

 Eusuchia. 



Thoracosaurus. Upper Cretaceous. 



Gavialis. Eocene to Recent. 



Alligator. Recent to Present. 



Order VIII. 

 DINOSAURIA. (Extinct Mesozoic Reptiles.) 

 Sub-order 1. 

 Theropoda. (Carnivores.) 

 Anchisaurus. Triassic. 



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