Cenozoic Life Age of Flowers & Mammals. Oceans Similar to Mesozoic… …with new predators.

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Presentation transcript:

Cenozoic Life Age of Flowers & Mammals

Oceans Similar to Mesozoic… …with new predators

Sharks Diversify: Megalodon

Birds: Diatryma phororhachids Diatrymidae

Titanis & Hipparian

Birds Move to the Water

Angiosperm Diversification

The Oligocene Rise of Grass

Herbs & Weeds

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

Grass, Rodents & Birds

Snakes

Mammal Evolution Monotremes Multituberculates Marsupials Eutheria (Placentals) Placenta Live Birth Early Mammals Late Jurassic Cretaceous

Mammal Phylogeny

Monotremes Egg-Laying Mammals Echidna Platypus

Multituberculates: Extinct Line of Mammals Taeniolabis

Placenta: Modified Amniotic Membrane

Marsupials Pouched Mammals

Cretaceous Marsupials: Alphadon

Pliocene Marsupials: Procoptodon

Convergent Evolution

Eutheria

Mammal Phylogeny

Rodents

Ungulates (Hooved Animals)

Perissodactyls (Odd-Toed Ungulates) Horses - Tapirs - Rhinos

Hipparion

Merychippus

Wooly Rhino - Coelodonta

Blue Lake Rhino

Artiodactyls (Even-toes Ungulates) Cows - Camels - Deer - Hippos - Pigs - Giraffe

Irish Elk

Proboscids Elephants - (Gomphotheres)

Wooly Mammoths & Platybelodon

Carnivora

Creodonts

Mammals Return to the Sea: Cetaceans, Pinepeds & Sirenians

Pakicetus & Ambulocetus

Basilasaurus

Whale Evolution

Insectivores

Primates

Mammal Phylogeny

Primate Ancestor - Tree Shrew

Primate Relations

Paleocene Primate- Plesiadapis

Eocene Primate- Notharctus