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Cenozoic Life Age of Flowers & Mammals
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Oceans Similar to Mesozoic… …with new predators
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Sharks Diversify: Megalodon
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Birds: Diatryma phororhachids Diatrymidae
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Titanis & Hipparian
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Birds Move to the Water
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Angiosperm Diversification
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The Oligocene Rise of Grass
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Herbs & Weeds
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Grasses/Herbs led to coevolution of: 1.Grazers - modifications to: 1.Teeth 2.Four-chambered stomach 3.Shape of the Head 4.Legs - faster runners (hooved animals) 2.Predators - adapted to hunting in the open (speed) 3.Rodents and Songbirds - grain eaters 4.Snakes - predators adapted to hunting in burrows
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Grass, Rodents & Birds
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Snakes
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Mammal Evolution Monotremes Multituberculates Marsupials Eutheria (Placentals) Placenta Live Birth Early Mammals Late Jurassic Cretaceous
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Mammal Phylogeny
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Monotremes Egg-Laying Mammals Echidna Platypus
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Multituberculates: Extinct Line of Mammals Taeniolabis
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Placenta: Modified Amniotic Membrane
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Marsupials Pouched Mammals
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Cretaceous Marsupials: Alphadon
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Pliocene Marsupials: Procoptodon
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Convergent Evolution
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Eutheria
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Mammal Phylogeny
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Rodents
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Ungulates (Hooved Animals)
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Perissodactyls (Odd-Toed Ungulates) Horses - Tapirs - Rhinos
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Hipparion
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Merychippus
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Wooly Rhino - Coelodonta
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Blue Lake Rhino
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Artiodactyls (Even-toes Ungulates) Cows - Camels - Deer - Hippos - Pigs - Giraffe
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Irish Elk
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Proboscids Elephants - (Gomphotheres)
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Wooly Mammoths & Platybelodon
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Carnivora
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Creodonts
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Mammals Return to the Sea: Cetaceans, Pinepeds & Sirenians
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Pakicetus & Ambulocetus
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Basilasaurus
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Whale Evolution
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Insectivores
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Primates
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Mammal Phylogeny
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Primate Ancestor - Tree Shrew
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Primate Relations
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Paleocene Primate- Plesiadapis
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Eocene Primate- Notharctus
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