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Offshore Peru, during the Eocene (~56-34 million years ago), showing two archaeocetes (ancient whales): Ocucajea picklingi and Supayacetus muizon.
Article

New Archaeocetes from Peru Are the Oldest Fossil Whales from South America

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Forams are tiny single-celled organisms.
Slideshow

Foraminifera

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An Illustration of small tentacled fossils.
Photo

Ancient Entoproct Community

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A rendering of an underwater marine scene from the Proterozoic Eon, featuring a creature that resembles a jellyfish and other organisms.
Photo

Ediacaran Community, Proterozoic Eon (2,500 - 542 Million Years Ago)

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An artistic rendering of an ocean landscape as it may have looked during the Archean Eon.
Photo

The Archean Eon (4,600 – 2,500 Million Years Ago)

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

Recliner Rudists

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Globotruncana falsostuarti -- a foram that lived about 75 million years ago, during the Cretaceous Period.
Photo

Globotruncana falsostuarti

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A rendering of an ocean scene as it may have looked 65 million years ago, when an astroid fell to Earth and triggered a mass extinction event.
Photo

Cretaceous-Paleogene Boundary (65 Million Years Ago)

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Illustration of the Paleozoic shallow water habitat.
Photo

A Mississippian Marine Habitat (359 - 318 Million Years Ago)

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An illustration of multispecies communities of dugongs from India, Mexico and Florida
Photo

Multispecies Communities of Seacows

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Mistaken Point New Foundland
Audio

Ediacaran Fossils: One Species at a Time

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A rendering of an underwater marine scene depicting life ~145-65 million years ago, when rudist clams were the major reef builders.
Article

Long Before Coral, Mollusks Built the Ocean's Reefs

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