PRECAMBRIAN(Precambrian)FIRST INVERTEBRATES
PALEOZOIC(Cambrian)FIRST FISHES(Ordovician)FIRST LAND PLANTS(Silurian)(Devonian)FIRST AMPHIBIANS.(Carboniferous,Mississippian,Pennsylvanian)FIRST REPTILES (Permian)
MESOZOIC(Triassic)FIRST DINOSAURS, MAMMALS, and BIRDS. (Jurassic)(Cretaceous)END OF DINOSAURS
CENOZOIC(Tertiary)BIRTH OF JESUS(Quaternary)DEATH OF JESUS
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