FLAGS & PERSONIFICATIONS 4 THE HISTORY OF THE EARTH [4.5-6 BILLION YEARS EDITION]

siderian: great oxidis/zation event

rhyacian: the earth is frozen 

???: a mas band of iron forms turning the seas red, the oklo nuclear reactor is active

calymmian: eggs begin appearin’ 

stenian: beginning of genders

tonian: larger plants

cryrogenian: world covered in snow & ice

edicaran: meer oxygen, 1st animals ( underwater) earliest fires

cambrian: "explosion" of various life forms

ordovician: starfish, plants on land

silurian:

devonian: first known evidence of scales

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carboniferous:large plants & animals & insects, “coal forests”, 

permian: known 4 mass xtinction of the previous era’s ecosystem

triassic & jurassic: life forms R still huge

cretaceous: birds & flowers begin 2 appear

paleogene: bats & amphibious animals known 2day

neogene: most recent ice age

quartenary: age of humans, thus inventions 2 this day, hence the robot.