This is how the organisms, which lived in the sea at the end of the the Vendian period, looked like. It all happened about 600 million years ago during the last geological period of the Neoproterozoic ...
The Changing Globe -- The Changing Face of the Earth -- Vendian Times -- Early Cambrian Times -- Late Cambrian Times -- Ordovician Times -- Silurian Times -- Devonian Times -- Carboniferous Times -- ...
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