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earliest record of marine life
Triobites are dominant -
Echinoderms(starfish,sandollar,sea urchin and sea cucumbers)
Invertebrates are dominant mollusks become abumdant. Earliest fish that are jawless and later armored fish. -
Earliest terrestial plants and animals
tiktaalik eurpterias develop -
Armored fish. Earliest amphibians and ammonties
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abundunt sharks , cool forming forests and earliest reptiles
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earliest dinosaursmabundant cycads and conifers
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Earliest birds and mammals
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earliest placental mammals,modern animals,large running mammals
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Large carnivores, neanderthals humans, mastodans
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