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the skull of a mosasaur
Article

Meals of the Mighty Mosasaur

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Hantkenina mexicana -- a foram with elongated shell chambers that lived between 45-49 million years ago, during the Eocene Epoch.
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Hantkenina mexicana

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Illustration of a four-legged proto-whale with webbed feet.
Photo

Early Whale with Webbed Feet

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Smithsonian researchers eat a meal in preparation for a fossil excavation
Article

At STRI, No Whales Yet, But There Are Fossil Sea Cows...

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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 rendering of an underwater marine scene from the Cambrian Period, featuring an arthropod, annelids, and other animals.
Slideshow

A Collection of Cambrian Fossils

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Two men each hold a ceramic vessel at the archaeological excavation
Article

Archaeologists Study Early Whaling Community in Quebec, Canada

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Forams are tiny single-celled organisms.
Slideshow

Foraminifera

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Smithsonian researchers eat a meal in preparation for a fossil excavation
Slideshow

A Squalodontid Success

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a group of ichthyosaurs swims at the ocean's surface
Article

Mystery of An Ichthyosaur Graveyard Revealed

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On average, Arctic sea ice has decreased by four percent per decade since the late 1970s.
Overview

Sea Level Rise

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Ocean Overtime Timeline.
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Ocean Over Time

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