Post Ordovician Mass Extinction Mid Paleozoic Era...

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Mid Paleozoic Era:Biologic Events

Brad Hubeny

Post Ordovician Mass Extinction

Silurian Radiations and Coral-Strome Reefs Brachiopod RadiationM

ajor

Ord

ers

Rise of FishesJawless Fish

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Acanthodians Placoderms

Sharks Ray-finned Fish

Lobe-finned FishTiktaalik and the Land Invasion!

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Plants Also Invade the Land! A Devonian Landscape

Archaeopteris: GiantFerns. WOW!!! Late Devonian Seeds

Late Devonian Mass Extinctions

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