mesozoic era- earth science
TRANSCRIPT
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MESOZOIC ERAAge of the Reptiles
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MESOZOIC ERA
TriassicJurassic
Cretaceous
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Triassic Period• First period during the Age of Reptiles.• plants such as ferns and cycads flourished.• ammonites evolved in the seas.• first true mammals evolved.
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CYCADS
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CYCADS
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AMMONITE
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MEGAZOSTRODON
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PLACODUS
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RUTIODONHOME
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Jurassic Period• on the land, dinosaurs thrive.• the first bird appeared.• mammal-like reptiles become extinct.• abundance of ammonites.
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CRINOIDS
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ARCHAEOPTERYX
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STEGOSUARUS
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SCELIDOSAURUS
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ICHTHYOSAURHOME
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CretaceousPeriod• closing and the longest period of this era.• abundance of armored and horned dinosaurs.• appearance of flying reptiles.• angiosperms first appeared.• mass extinction at the end of this period.
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TYRANNOSAURUS-REX
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PTERANODON
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TRICERATOPS
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KENTROSUARUS
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REBBACHISAURUS
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MOSASAUR
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ARCHELON
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