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THE PERMIAN. Reptiles Dimetrodon Mammal-like Reptiles. THE PERMIAN. Eggs Amniotic egg allowed Organisms to become terrestrial. THE PERMIAN. Plants Glossopteris. THE PERMIAN. Permian Extinction. THE TRIASSIC. The Break-up of Pangaea Three-fold division of rocks in Germany

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THE PERMIAN

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THE PERMIAN

Reptiles

Dimetrodon

Mammal-like

Reptiles


THE PERMIAN

Eggs

Amniotic egg allowed

Organisms to become

terrestrial


THE PERMIAN

Plants

Glossopteris


THE PERMIAN

Permian Extinction


THE TRIASSIC

The Break-up of Pangaea

Three-fold division of rocks in Germany

Named by Frederich von Alberti in 1834


THE TRIASSIC


THE TRIASSIC

Absaroka Sea continues to retreat

Triassic is very terrestrial Period


THE TRIASSIC


THE TRIASSIC


THE TRIASSIC


THE TRIASSIC


THE TRIASSIC

Joshua Chamberlain, left

Little Round Top, Battle of Gettysburg

3 July, 1863


THE TRIASSIC

Chinle Formation, Petrified Forest National Park


THE TRIASSIC

Chinle Formation, Painted Desert


THE TRIASSIC

Triassic Reptiles

Mammal-like


THE TRIASSIC

Dilophosaurus

Triassic Reptiles

Diversification of dinosaurs

Coelophysis


THE TRIASSIC

First Marine Reptiles


THE TRIASSIC

Mammals Evolve


THE JURASSIC

Named for strata in Jura Mountains between

France and Switzerland

Named by Alexander von Humbolt in 1795

Redefined by Leopold von Buch in 1839


THE JURASSIC


THE JURASSIC

Nevadan Orogeny


THE JURASSIC

Nevadan Orogeny


THE JURASSIC

Nevadan Orogeny

Emplacement of batholiths


THE JURASSIC

Cordilleran Orogeny


THE JURASSIC

Cordilleran Orogeny


THE JURASSIC

Cordilleran Orogeny


THE JURASSIC

Cordilleran Orogeny


THE JURASSIC

Absaroka Sea continues to retreat

Jurassic is very terrestrial Period

Transgression of Zuni Sea at end of Jurassic


THE JURASSIC

DinosaursOrnithischian (Bird-hipped)


THE JURASSIC

DinosaursOrnithischian (Bird-hipped)


THE JURASSIC

DinosaursSaurichian (Lizard-hipped)

Therapods

Velociraptor

Tyrannosaurus


THE JURASSIC

DinosaursSaurichian (Lizard-hipped)

Sauropods

Apatosaurus

Diplodicus


THE JURASSIC

Birds

Actually arose

from

LIZARD-hipped

Dinosaurs

Archeopteryx


THE JURASSIC

Angiosperms

Arose in

Late Jurassic


THE JURASSIC

Arches National Park


THE JURASSIC

Canyonlands National Park


THE JURASSIC

Colorado National Monument


THE JURASSIC

Colorado National Monument

Morrison Formation


THE JURASSIC

More Morrison Formation

I-70

Roadcut

Morrison, CO


THE CRETACEOUS

The Age of Dinosaurs II

Named for the latin word for chalk

Named by Omalius d’Halloy in 1822


THE CRETACEOUS


THE CRETACEOUS

Orogenic Events – Cordilleran continues


THE CRETACEOUS

Orogenic Events - Sevier Orogeny


THE CRETACEOUS

Orogenic Events - Sevier Orogeny


THE CRETACEOUS

Orogenic Events


THE CRETACEOUS

Orogenic Events – Laramide Orogeny


THE CRETACEOUS

Orogenic Events – Laramide Orogeny


THE CRETACEOUS

Cretaceous is very marine Period

Transgression of Zuni Sea continues into the K


THE CRETACEOUS

Craton flooded for the last time


THE CRETACEOUS

Craton flooded for the last time

Pierre Shale


THE CRETACEOUS

Craton flooded for the last time


THE CRETACEOUS

Ammonites

Complex coiling and suture patterns


THE CRETACEOUS

Craton flooded for the last time


THE CRETACEOUS

Bryce Canyon National Park


THE CRETACEOUS

Mesa Verde National Park


THE CRETACEOUS

The Cretaceous-Tertiary Extinction


THE CRETACEOUS

The K-T Extinction


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