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precambrian time
Geologic Event
Earth Formed
Oceans formed
oldest Rock
prokaryotic cell
eukaryotic cell
multicellular animals
arthropods
first mass extinction
paleozoic era
ancient continents
ice caps covers north America
appalation mountains form
pangea forms
vertebrates arise
Plants On Land
Lungfish
Insects
Amphibians
Reptiles
Paleozoic Mass Extinction
mesozoic era
Pangea Breaks apart
South America Breaks Away from Africa
Choice
flowering Plants
Dinosoars
Mammals
Birds
snakes
Mesozoic Mass Extinction
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cenozoic era
rocky mountains form
Himalayas form
continents move to current positions
ice age
grass
modern animal groups form
Lucy the australopithecus
modern humans
Appalation Mountains form
the Appalachion mountains formed about 360 million years ago at the end of the carboniforus period. They formed because when the euramerica continent hit Godwanaland and created the Appalachion Mountains