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Trioabites were dominant. All of Earth was oceans with emerging of small granite continents. All life was marine.
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Most of the Earth was entirely ocean and tropics.
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Earliest terrestial plants and animals. Bony fish. Peak development of euryplerids.
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Earliest amphibians and ammonites. Extinction of armored fishes, abundant fishes.
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Earliest reptiles. Coal forming forests. Abundant sharks and amphibians. A lot of large scale trees and seed ferns.
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Earliest dinosaurs. Abundant cycades and conifers.
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Earliest birds and mammals. Abundant dinosaurs and ammonites.
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Earliest flowering plants. Climax of dinosaurs and ammonites followed by extinction. Great decline of brachiopods. Great development of bony fishes.
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Humans, mastodons, mammoths. Large carnivores. Abundant grazinf animals. Large running mammals. Many modern types of mammals. Earliest placental mammals.
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Large carnivores, neanderthals, humans, mastodons.
