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Ancient Crinoid
A fossilized Platycrinus basicraniatus, a crinoid from the Mississippi period......
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Blastoid Fossil
A fossilized blastoid from the Smithsonian's collection. ......
Article
Meals of the Mighty Mosasaur
Between 100 and 65 million years ago, at the time when dinosaurs reigned on land,......
November 2018

Article
If You Build An Ocean, Sea Monsters Will Come
Building a productive ocean is complicated. The process is long (on the order of......
October 2018

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The Model Megalodon
Take a trip to the National Museum of Natural History in Washington, D.C. and you......
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Trilobite Shapes
Prolific survivors with a segmented body plan that could be easily modified and......
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Precambrian Timeline

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Paleozoic Timeline

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Mesozoic Timeline

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