1	Phylum Chordata Tetrapods
2	Amphibians Amphibians are the oldest class of tetrapods Late Devonian and Early Carboniferous eras are the age of amphibians. (365 -245 million years ago) Permeable skin for respiration Three chambered heart
3	Order Urodela (Salamanders)
4	Order Anura (Frogs)
5	Order Apoda (caeclians)
6	Reproduction Eggs are laid into the water and fertilization is external
7	"Amphibians pass through a larval..." Amphibians pass through a larval stage (tadpoles) then metamorphose to an adult stage. Larval stages feed underwater then metamorphose into terrestrial adults
8	Amniotes Reptile, Birds and Mammals These groups have developed a number of adaptations that improved their survival on land. Amniotic Egg – extraembryonic membranes
9	The Amniotic Egg Evolution of the amniotic egg expanded the success of vertebrates on land
10	Age of Reptiles Dry scales made of Keratin Ectothermic – absorption of external heat as the main source of body heat. Lungs
11	Reptiles
12	Amniotes
13	Evolutionary Radiation of Reptiles Synapsids - Therapsids mammal-like reptiles origin of mammals. Diapsids - all amniotes except mammals. Archosaurs- turtles?, crocodiles, extinct dinosaurs and Pterosaurs. Dinosaurs - gave rise to the Saurischian – Theropods which gave rise to the birds. Lepidosaurs - modern lizards, snakes and tuataras.
14	Extant reptiles
15	Dinosaurs
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17	Origin of the Birds Flight Fossils with feathers Archaeopteryx - 150 million years ago Jurassic era.
18	Archaeopteryx
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20	Class Avis (Birds)
21	Class Avis Characteristics Feathers Endothermy - high metabolism Efficient Circulation hollow bones
22	Flight adaptations
23	Airfoil and flight
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25	Mammals Welcome to your Class! Hair Endothermic Four Chambered Heart Diaphragm
26	Monotremes : Echidna
27	Platypus
28	Marsupials
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30	Eutherian (placental) Mammals