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Class Reptilia
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Class Reptilia Scales Amniotic egg One occipital condyle Ectothermic
Three chambered heart Alligators have 4 Claws
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Fig. 26.3
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Amniotic Egg
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Fig. 26.4
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Fig. 26.5
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Ectothermic
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Reptile Skulls Anapsid Synapsid Diapsid Euryapsid No opening
One opening Diapsid Two openings Euryapsid One small opening
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Anapsids Turtles
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Diapsids Dinosaurs Snakes Lizards Crocodilians Birds
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Dinosaurs Dominate animals in Mesozoic Era
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Euryapsid Extinct Ichythyosaurs
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Synapsids Pelycosaurs Dimetrodon Mammal like reptile
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Order Testudines No teeth in adult Shell Anapsid
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Turtle Shell Carapace Plastron
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Box Turtle Terrapene Adapted to live on land Feet not webbed
High domed shell Safe
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Red-Eared Slider Trachemys
Red stripe behind eye Live in or near water Ponds Slow moving water Pets Carry Salmonella
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Snapping Turtle Chelydra
Live in water Lay eggs on land Long tail Muscular limbs
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Fig. 26.7
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Giant Tortoise Lifespan 150 Years
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Leatherback Sea Turtle
6 feet long 1,400 pounds
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Order Squamata Kinetic skull Movable joints Lizards Snakes Dinosaurs
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Geckos Small lizards Adhesive toe pads
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Gecko Toe Pads Fig
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Wall Lizard Lacerta Color is variable Slender body Small scales
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Texas Horned Lizard Spines for protection Eats ants Endangered species
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Gila Monster Poisonous lizard Not very aggressive
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Green Iguana Ornamental crest Five feet long Tropical rainforest
Mexico South America Omnivores
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Chameleons Arboreal Africa and Madagascar Catch insects with tongue
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Komodo Dragon Attack and eat humans 10 feet long 300 pounds Indonesia
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Snakes No legs No external ears Jacobson’s organ
Sense smell with aid of tongue Cornea of eye protected with a spectacle transparent membrane Skull bones loose Swallow large prey
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Swallow Prey
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Snake Venom
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Alabama Snakes Poisonous Nonpoisonous
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Copperhead Agkistrodon
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Cottonmouth or Water Moccasin Agkistrodon
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Eastern Diamond Backed Rattlesnake Crotalus
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Prairie Rattlesnake Crotalus
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Timber Rattlesnake Crotalus
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Black Rat Snake
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Diamond Backed Watersnake Nerodia
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Green Snake
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Coral Snake
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Order Crocodilia Crocodiles Caimans Alligators Gavials Elongated skull
Four chambered heart
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Alligator
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Caiman Elevated eyes
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Gavial
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Alligator Caiman Crocodile Gavial
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The End Fig
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