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THE PERMIANReptiles
Dimetrodon
Mammal-like Reptiles
THE PERMIANEggsAmniotic egg allowedOrganisms to becometerrestrial
THE PERMIANPlants
Glossopteris
THE PERMIANPermian Extinction
THE TRIASSICThe Break-up of Pangaea
Three-fold division of rocks in Germany
Named by Frederich von Alberti in 1834
THE TRIASSIC
THE TRIASSICAbsaroka Sea continues to retreatTriassic is very terrestrial Period
THE TRIASSIC
THE TRIASSIC
THE TRIASSIC
THE TRIASSIC
THE TRIASSICJoshua Chamberlain, leftLittle Round Top, Battle of Gettysburg3 July, 1863
THE TRIASSICChinle Formation, Petrified Forest National Park
THE TRIASSICChinle Formation, Painted Desert
THE TRIASSICTriassic Reptiles
Mammal-like
THE TRIASSICTriassic Reptiles
Diversification of dinosaurs
Coelophysis
Dilophosaurus
THE TRIASSICFirst Marine Reptiles
THE TRIASSICMammals 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 JURASSICNevadan Orogeny
THE JURASSICNevadan Orogeny
THE JURASSICNevadan Orogeny
Emplacement of batholiths
THE JURASSICCordilleran Orogeny
THE JURASSICCordilleran Orogeny
THE JURASSICCordilleran Orogeny
THE JURASSICCordilleran Orogeny
THE JURASSICAbsaroka Sea continues to retreatJurassic is very terrestrial PeriodTransgression of Zuni Sea at end of Jurassic
THE JURASSICDinosaurs Ornithischian (Bird-hipped)
THE JURASSICDinosaurs Ornithischian (Bird-hipped)
THE JURASSICDinosaurs Saurichian (Lizard-hipped)Therapods
Tyrannosaurus
Velociraptor
THE JURASSICDinosaurs Saurichian (Lizard-hipped)Sauropods
Apatosaurus
Diplodicus
THE JURASSICBirds
Actually arose from LIZARD-hipped Dinosaurs
Archeopteryx
THE JURASSICAngiosperms
Arose in Late Jurassic
THE JURASSICArches National Park
THE JURASSICCanyonlands National Park
THE JURASSICColorado National Monument
THE JURASSICColorado National MonumentMorrison Formation
THE JURASSICMore Morrison Formation
I-70Roadcut
Morrison, CO
THE CRETACEOUSThe Age of Dinosaurs II
Named for the latin word for chalk
Named by Omalius d’Halloy in 1822
THE CRETACEOUS
THE CRETACEOUSOrogenic Events – Cordilleran continues
THE CRETACEOUSOrogenic Events - Sevier Orogeny
THE CRETACEOUSOrogenic Events - Sevier Orogeny
THE CRETACEOUSOrogenic Events
THE CRETACEOUSOrogenic Events – Laramide Orogeny
THE CRETACEOUSOrogenic Events – Laramide Orogeny
THE CRETACEOUSCretaceous is very marine PeriodTransgression of Zuni Sea continues into the K
THE CRETACEOUSCraton flooded for the last time
THE CRETACEOUSCraton flooded for the last time
Pierre Shale
THE CRETACEOUSCraton flooded for the last time
THE CRETACEOUSAmmonitesComplex coiling and suture patterns
THE CRETACEOUSCraton flooded for the last time
THE CRETACEOUSBryce Canyon National Park
THE CRETACEOUSMesa Verde National Park
THE CRETACEOUSThe Cretaceous-Tertiary Extinction
THE CRETACEOUSThe K-T Extinction
