Mesozoic Era- Earth Science

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Transcript of Mesozoic Era- Earth Science

MESOZOIC ERAAge of the Reptiles

MESOZOIC ERA

TriassicJurassic

Cretaceous

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.

CYCADS

CYCADS

AMMONITE

MEGAZOSTRODON

PLACODUS

RUTIODONHOME

Jurassic Period• on the land, dinosaurs thrive.• the first bird appeared.• mammal-like reptiles become extinct.• abundance of ammonites.

CRINOIDS

ARCHAEOPTERYX

STEGOSUARUS

SCELIDOSAURUS

ICHTHYOSAURHOME

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.

TYRANNOSAURUS-REX

PTERANODON

TRICERATOPS

KENTROSUARUS

REBBACHISAURUS

MOSASAUR

ARCHELON

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