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Earlist record of marine life- trilobites are dominant
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Old life
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Echinoderms(starfish, sand dollar, sea urchin and sea cucumbers) Invertabres are dominant, mullusks become abundant. Earlist fish that are jawless and later jawed and amored fish.
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Earlist terrestrial plants and animals. tikaaliik euryplorids devolpe
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Armored fish go extinct, but abundance of several species of fish. earlist amphibians and ammonites
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Abundant sharks and amphibians. Large swamps and coal forming forests. Earlist reptiles. Scale trees and seed ferns
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Extinction of many types of marine animals including trillubites
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middle life
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Earlist Dinosuars, abundant cycads and conifers
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Earlist birds, and mammals. Abundant dinosuars and ammonites
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Earlist flowweing plants, climax of dinosuars followed by their extintion. Great decline of brachiopods. Abundance in bony fish
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New life
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Earlist placential mammals, modern mammals, large running mammals.
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Large carnivors, neaderthols, humans mastoclones
