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Early animals of marine life
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Ocean creatures become more dominant
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earliest animal and plant life
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Earliest amphibians and ammonites. Armored fish become extinct
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Sharks and amphibians become abundant. Swamps and coal forests. Earliest reptiles.
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Many marine animals become extinct.
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Earliest dinosaurs. Many cycads and conifers.
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Abundance of dinosaurs and ammonites. Earliest birds and mammals.
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Dinosaurs become extinct. Earliest flowering plants. Decline of brachiopods. Many bony fish.
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Earliest placental mammals. Modern mammals. Large running mammals.
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Large carnivores, humans, and mastadons.
