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Earliest record of Marine life- Trilobites are dominant
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Echinoderms ( starfish, sand dollar, sea urchin and sea cucumbers). Invertebrates are dominant, mollusks become abundant. Earliest Fish that are jawless and later jawed and armored fish.
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Earliest terrestrial plants and animals. Eurypterids develop
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Armored fish go extinct, but abundance of several species of fish. Earliest amphibians and ammonites.
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Abundant sharks and amphibians. Large swamps and coal forming forests. Earliest reptiles. Scale trees and seed ferns.
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Extinction of many types of marine animals including trilobites
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Earliest dinosaurs, abundant cycads and conifers.
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Ealiest birds and mammals abundant dinosaurs and ammonites.
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Earliest flowering plants, climax of dinosaurs followed by their extinction. Great decline of brachiopods. Abundance of bony fish.
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Earliest Placental Mammals, modern mammals, large running mammals
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Large Carnivores, Neanderthals, Humans, mastodons
