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The Jurassic time period started 200 million years ago
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The earliest mammals appeared 200 million years ago
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The earliest dinosaurs appeared 237 million years ago
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The Permian time period started 262 million years ago.
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The earliest insects appeared 416 million years ago.
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The Cambrian time period started 512 million years ago
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The Beluga Whale lived .01 million years ago. The Beluga Whale is a mammal that can live for 30-50 years.
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The Bothriolepis lived 359 million years ago. Small mud eating armoured fish
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The Stylonurus lived 381 million years ago.