Paleozoic Era Ordovician Period Copy everything on this slide 488-444 mya Diversification of marine organisms of Paleozoic fauna End-Ordovician extinction.
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Paleozoic Era Ordovician Period
• Copy everything on this slide• 488-444 mya• Diversification of marine organisms of Paleozoic
fauna• End-Ordovician extinction• Deep-water faunas, especially graptolites are
common, colonial marine organisms• Appearance of conodonts, marine fish-like predators• Development of coral reefs• Plants evolved onto land• First major Paleozoic ice age.
Colonial Organisms that looked like graphite hieroglyphs of the
Egyptians
Graptolites
Nautilus
Conodonts- marine predators
Lamprey Fish
Hag fish
Blue-green Algae
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