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An illustration of multispecies communities of dugongs from India, Mexico and Florida
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Multispecies Communities of Seacows

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Smithsonian Scientists Dig a Trench Around a squalodontid Skull
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Expedition to Excavate a Fossil Whale

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Smithsonian scientists race the tide the excavate an ancient whale fossil entombed in rock
Article

Fossil Whale Found, Excavated, Jacketed, and Returned to STRI!

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A shark tooth embedded in a bone
Article

What the Megalodon Left Behind

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A hippopotamus-like creature swims underwater
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Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

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Fossil mosasaur skull and partial skeleton sitting in what looks like the dirt it was excavated from.
Article

If You Build An Ocean, Sea Monsters Will Come

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an ancient worm-like creature with spikes on its back
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Hallucigenia's Spikes

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the skull of a mosasaur
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Meals of the Mighty Mosasaur

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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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A skeleton of an ichthyosaur
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An Ichthyosaur's Bones

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

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A fossil imprint of Ottoia prolifica.
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Ottoia prolifica

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