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Artistic rendering of an ancient shark, Helicoprion.
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Illustration of Helicoprion

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Photograph of the model of a Giant Megatooth Shark, taken from the front..
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Giant Megatooth Model

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Illustration of a four-legged proto-whale with webbed feet.
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Early Whale with Webbed Feet

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Color illustration of an ancient bivalve.
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Elevator Rudists

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Notice the pink tentacles, which “recliners” used to filter feed.
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Recliner Rudists

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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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A handful of fossil pieces from the Cambrian period sit on a gray background.
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Scientists and Fossils

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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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An image of a Anomalocaris canadensis fossil.
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Anomalocaris canadensis

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A bright illustration of extinct predator Hurdia victoria.
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Hurdia Victoria

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