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Cretaceous Period

Cretaceous Period. 145-65.5 million years. Plant life. Flowering plants (angiosperms) appear Grasses appear. Marine life. Diatoms: Eukaryotic algae plankton Modern Sharks Mosasaur : Marine Reptile. Terrestrial Life. Dinosaurs Dominate. Terrestrial Life.

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Cretaceous Period

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  1. Cretaceous Period

  2. 145-65.5 million years

  3. Plant life • Flowering plants (angiosperms) appear • Grasses appear

  4. Marine life • Diatoms: Eukaryotic algae plankton • Modern Sharks • Mosasaur: Marine Reptile

  5. Terrestrial Life Dinosaurs Dominate

  6. Terrestrial Life Lets peak in on the Mammals Early Cretaceous Late Cretaceous Marsupial Mammals Placental Mammals

  7. Creepy, Crawly Life • 1st Butterflies • 1st Bees • Ants, termites, aphids, and grasshoppers

  8. What does it look like? Pangaea Has Totally Split

  9. Where do the Dinos Go? • K-T Extinction Event (K is for Cretaceous T is for Tertiary) • 2nd Largest Extinction Event in history SurvivedSeverely AffectedExtinct Ferns Diatoms 85% of all life Seed Producing Plants Brachiopods Dinosaurs Mammals Mollusks Pterosaurs Birds Fish Ichthyosaurs Turtles Plesiosaurs Crocodiles Lizards Snakes Amphibians • Meteor Impact? • Disease? • Volcanism? • Glaciation? • Combo?

  10. Picture It

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