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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!
3
Plants Also Invade the Land! A Devonian Landscape
Archaeopteris: GiantFerns. WOW!!! Late Devonian Seeds
Late Devonian Mass Extinctions