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• Chelonia, genus Chelonia go
  green turtles
  
• Caretta, genus Caretta go
  loggerhead turtles
  
• Lepidochelys, genus Lepidochelys go
  ridleys
  
• Eretmochelys, genus Eretmochelys go
  hawksbills
  
• Dermochelys, genus Dermochelys go
  type genus of the Dermochelyidae: leatherback turtles
  
• Chelydra, genus Chelydra go
  snapping turtles
  
• Macroclemys, genus Macroclemys go
  includes the alligator snapping turtle
  
• Kinosternon, genus Kinosternon go
  type genus of the Kinosternidae
  
• Sternotherus, genus Sternotherus go
  musk turtles
  
• Malaclemys, genus Malaclemys go
  American terrapins
  
• Pseudemys, genus Pseudemys go
  sliders
  
• Terrapene, genus Terrapene go
  box turtles
  
• Chrysemys, genus Chrysemys go
  painted turtles
  
• Testudo, genus Testudo go
  type genus of the Testudinidae
  
• Geochelone, genus Geochelone go
  giant tortoises
  
• Gopherus, genus Gopherus go
  gopher tortoises
  
• Xerobates, genus Xerobates go
  possible new genus for desert and Texas tortoises based on recent research
  
• Trionyx, genus Trionyx go
  type genus of the Trionychidae
  
• Sphenodon, genus Sphenodon go
  coextensive with the order Rhynchocephalia: tuataras
  
• Ptychozoon, genus Ptychozoon go
  flying geckos
  
• Coleonyx, genus Coleonyx go
  banded geckos
  
• Pygopus, genus Pygopus go
  type genus of the Pygopodidae
  
• genus Iguana go
  type genus of the Iguanidae
  
• Amblyrhynchus, genus Amblyrhynchus go
  marine iguanas
  
• Dipsosaurus, genus Dipsosaurus go
  desert iguanas
  
• Sauromalus, genus Sauromalus go
  chuckwallas
  
• Callisaurus, genus Callisaurus go
  zebra-tailed lizard
  
• Uma, genus Uma go
  fringe-toed lizard
  
• Holbrookia, genus Holbrookia go
  earless lizards
  
• Crotaphytus, genus Crotaphytus go
  collared lizards
  
• Gambelia, genus Gambelia go
  leopard lizards
  
• Sceloporus, genus Sceloporus go
  spiny lizards
  
• Uta, genus Uta go
  a reptile genus of Iguanidae
  
• Urosaurus, genus Urosaurus go
  a reptile genus of Iguanidae
  
• Phrynosoma, genus Phrynosoma go
  horned lizards
  
• Basiliscus, genus Basiliscus go
  a reptile genus of Iguanidae
  
• Anolis, genus Anolis go
  New World chameleons
  
• Amphisbaena, genus Amphisbaena, Amphisbaenia, genus Amphisbaenia go
  type genus of the Amphisbaenidae
  
• Scincus, genus Scincus go
  type genus of Scincidae
  
• Scincella, genus Scincella go
  a reptile genus of Scincidae
  
• Eumeces, genus Eumeces go
  New World skinks
  
• Cordylidae, family Cordylidae go
  small family of spiny ovoviviparous African lizards
  
• Cordylus, genus Cordylus go
  type genus of the Cordylidae
  
• Cnemidophorus, genus Cnemidophorus go
  whiptails
  
• Tupinambis, genus Tupinambis go
  tejus
  
• genus Agama go
  type genus of the Agamidae
  
• Chlamydosaurus, genus Chlamydosaurus go
  frilled lizards
  
• Draco, genus Draco go
  a reptile genus known as flying dragons or flying lizards
  
• genus Moloch go
  genus of Australian desert lizard
  
• Gerrhonotus, genus Gerrhonotus go
  alligator lizards
  
• Anguis, genus Anguis go
  type genus of the Anguidae: blindworms
  
• Ophisaurus, genus Ophisaurus go
  glass lizards
  
• Xenosaurus, genus Xenosaurus go
  type and sole genus of Xenosauridae: slender-bodied Mexican lizards having the upper surface covered with tiny granules and tubercles
  
• Lanthanotus, genus Lanthanotus go
  one species
  
• Heloderma, genus Heloderma go
  type genus of the Helodermatidae
  
• Lacerta, genus Lacerta go
  type genus of the Lacertidae
  
• Chamaeleo, genus Chamaeleo, genus Chamaeleon go
  type genus of the Chamaeleontidae
  
• Varanus, genus Varanus go
  type and sole extant genus of the Varanidae
  
• Saurosuchus, genus Saurosuchus go
  early archosaurian carnivore
  
• Proterochampsa, genus Proterochampsa go
  early archosaurian carnivore
  
• Crocodylus, genus Crocodylus, Crocodilus, genus Crocodilus go
  type genus of the Crocodylidae
  
• Tomistoma, genus Tomistoma go
  a genus of Malayan crocodiles
  
• genus Alligator go
  type genus of the Alligatoridae
  
• genus Caiman go
  caimans
  
• Gavialis, genus Gavialis go
  type genus of the Gavialidae
  
• genus Pisanosaurus go
  primitive ornithischian dinosaur found in Argentina
  
• genus Staurikosaurus go
  primitive ornithischian dinosaur found in Brazil
  
• genus Stegosaurus go
  quadrupedal armored herbivore of the Jurassic and Cretaceous
  
• genus Ankylosaurus go
  armored herbivorous dinosaurs of the Cretaceous
  
• genus Protoceratops go
  small horned dinosaurs
  
• genus Triceratops go
  genus of herbivorous horned dinosaurs
  
• genus Styracosaurus go
  genus of horned dinosaurs
  
• genus Psittacosaurus go
  most primitive genus of horned dinosaurs
  
• genus Anatotitan go
  genus of large duck-billed dinosaurs
  
• genus Corythosaurus go
  genus of duck-billed dinosaurs of late Cretaceous
  
• genus Edmontosaurus go
  duck-billed dinosaurs of Canada
  
• genus Trachodon go
  a reptile genus of the suborder Euronithopoda
  
• genus Iguanodon go
  type genus of the Iguanodontidae
  
• genus Apatosaurus, genus Brontosaurus go
  large quadrupedal herbivorous dinosaurs with very long neck and tail
  
• genus Barosaurus go
  huge quadrupedal herbivorous dinosaur
  
• genus Diplodocus go
  a reptile genus of the suborder Sauropoda
  
• Titanosaurus, genus Titanosaurus go
  genus of herbivorous dinosaurs flourishing during the Cretaceous in South America
  
• Seismosaurus, genus Seismosaurus go
  genus of large herbivorous dinosaurs of Cretaceous found in western North America
  
• genus Ceratosaurus go
  primitive saurischian carnivorous dinosaurs
  
• genus Coelophysis go
  late Triassic carnivorous saurischian dinosaurs
  
• genus Tyrannosaurus go
  includes a single species
  
• genus Allosaurus, genus Antrodemus go
  carnivorous dinosaur of North America
  
• genus Compsognathus go
  a reptile genus of Theropoda
  
• genus Herrerasaurus go
  primitive theropod found in Argentina
  
• genus Eoraptor go
  primitive theropod found in Argentina
  
• genus Megalosaurus go
  type genus of the Megalosauridae
  
• genus Struthiomimus go
  small toothless saurischian dinosaurs
  
• genus Deinocheirus go
  a reptile genus of Ornithomimida
  
• genus Velociraptor go
  advanced carnivorous theropod
  
• genus Deinonychus go
  advanced bipedal carnivorous dinosaur
  
• genus Utahraptor go
  advanced bipedal carnivorous dinosaur
  
• genus Mononychus go
  authorities disagree over whether to classify the genus as bird or dinosaur
  
• Chronoperates, genus Chronoperates go
  a reptile genus of Therapsida
  
• Exaeretodon, genus Exaeretodon go
  a genus of reptiles of the division Cynodontia
  
• Ischigualastia, genus Ischigualastia go
  early reptile found in Argentina
  
• genus Edaphosaurus go
  type genus of the Edaphosauridae
  
• genus Dimetrodon go
  a reptile genus of Pelycosauria
  
• Pterodactylus, genus Pterodactylus go
  a reptile genus of Pterodactylidae
  
• genus Ichthyosaurus go
  type genus of the Ichthyosauridae
  
• genus Stenopterygius go
  a reptile genus of Ichthyosauridae
  
• genus Plesiosaurus go
  a reptile genus of suborder Plesiosauria
  
• genus Nothosaurus go
  a genus of Nothosauria
  
• Carphophis, genus Carphophis go
  thunder snake
  
• Diadophis, genus Diadophis go
  a genus of reptiles of the family Colubridae including ringneck snakes
  
• Heterodon, genus Heterodon go
  a genus of small colubrid snakes containing the North American hognose snakes
  
• Phyllorhynchus, genus Phyllorhynchus go
  leaf-nosed snakes
  
• Opheodrys, genus Opheodrys go
  North American green snakes
  
• Chlorophis, genus Chlorophis go
  African green snakes
  
• Coluber, genus Coluber go
  racers
  
• Masticophis, genus Masticophis go
  whip snakes
  
• Elaphe, genus Elaphe go
  North American rat snakes
  
• Ptyas, genus Ptyas go
  Asian rat snakes
  
• Arizona, genus Arizona go
  glossy snake
  
• Pituophis, genus Pituophis go
  bull snakes
  
• Lampropeltis, genus Lampropeltis go
  king snakes and milk snakes
  
• Thamnophis, genus Thamnophis go
  garter snakes
  
• Tropidoclonion, genus Tropidoclonion go
  lined snakes
  
• Sonora, genus Sonora go
  ground snakes
  
• Potamophis, genus Potamophis go
  ground snakes
  
• Haldea, genus Haldea go
  ground snakes
  
• Natrix, genus Natrix go
  water snakes
  
• Nerodia, genus Nerodia go
  North American water snakes
  
• Storeria, genus Storeria go
  a genus of Colubridae
  
• Chilomeniscus, genus Chilomeniscus go
  sand snakes
  
• Tantilla, genus Tantilla go
  black-headed snakes
  
• Oxybelis, genus Oxybelis go
  vine snakes
  
• Trimorphodon, genus Trimorphodon go
  lyre snakes
  
• Hypsiglena, genus Hypsiglena go
  night snakes
  
• Leptotyphlops, genus Leptotyphlops go
  blind snakes of Asia and Africa and Americas
  
• Drymarchon, genus Drymarchon go
  a genus of Colubridae
  
• Charina, genus Charina go
  boas of western North America
  
• Lichanura, genus Lichanura go
  boas of western North America
  
• Eunectes, genus Eunectes go
  anacondas
  
• genus Python go
  Old World boas
  
• Micrurus, genus Micrurus go
  coral snakes
  
• Micruroides, genus Micruroides go
  coral snakes
  
• Calliophis, genus Calliophis, Callophis, genus Callophis go
  Asian coral snakes
  
• Aspidelaps, genus Aspidelaps go
  African coral snakes
  
• Rhynchoelaps, genus Rhynchoelaps go
  Australian coral snakes
  
• Denisonia, genus Denisonia go
  copperheads
  
• Naja, genus Naja go
  cobras
  
• Ophiophagus, genus Ophiophagus go
  king cobra
  
• Hemachatus, genus Hemachatus go
  ringhals
  
• Dendroaspis, genus Dendroaspis, Dendraspis, genus Dendraspis go
  mambas
  
• Acanthophis, genus Acanthophis go
  Australian elapid snakes
  
• Notechis, genus Notechis go
  tiger snakes
  
• Pseudechis, genus Pseudechis go
  venomous Australian blacksnakes
  
• Bungarus, genus Bungarus go
  kraits
  
• Oxyuranus, genus Oxyuranus go
  taipans
  
• Vipera, genus Vipera go
  type genus of the Viperidae
  
• Bitis, genus Bitis go
  a genus of Viperidae
  
• genus Cerastes, Aspis, genus Aspis go
  horned vipers
  
• Agkistrodon, genus Agkistrodon, Ancistrodon, genus Ancistrodon go
  copperheads
  
• Crotalus, genus Crotalus go
  large rattlesnakes
  
• Sistrurus, genus Sistrurus go
  pygmy rattlesnakes
  
• Bothrops, genus Bothrops go
  fer-de-lance