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Ocean Overtime Timeline.
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Ocean Over Time

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A skeleton of an ichthyosaur
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An Ichthyosaur's Bones

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serrations from sharks on a fossilized whalebone
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Bite Marks From the Past

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A shark tooth embedded in a bone
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A Tooth Left Behind

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A fossil imprint of Haplophrentis carinatus with two oar-like appendages.
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Haplophrentis carinatus

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Colorful illustration of extinct Archaeocyatha that lived on the seafloor.
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Archaeocyatha

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Illustration of Opabinia with five eyes and what look like scales.
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Opabinia

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A fossil imprint of Ottoia prolifica.
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Ottoia prolifica

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A bright illustration of extinct predator Hurdia victoria.
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Hurdia Victoria

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Fossilezed Hallucigenia sparso with large white spines.
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Hallucigenia

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An image of a Anomalocaris canadensis fossil.
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Anomalocaris canadensis

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Fossil mosasaur skull and partial skeleton sitting in what looks like the dirt it was excavated from.
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If You Build An Ocean, Sea Monsters Will Come

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