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

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Forams are tiny single-celled organisms.
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Foraminifera

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An artistic rendering of an ocean landscape as it may have looked during the Archean Eon.
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The Ocean Throughout Geologic Time, An Image Gallery

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An artistic rendering of an ocean landscape as it may have looked during the Archean Eon.
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The Archean Eon (4,600 – 2,500 Million Years Ago)

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

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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.
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Cretaceous-Paleogene Boundary (65 Million Years Ago)

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Illustration of the Paleozoic shallow water habitat.
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A Mississippian Marine Habitat (359 - 318 Million Years Ago)

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Offshore Peru, during the Eocene (~56-34 million years ago), showing two archaeocetes (ancient whales): Ocucajea picklingi and Supayacetus muizon.
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New Archaeocetes from Peru Are the Oldest Fossil Whales from South America

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Color illustration of an ancient bivalve.
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Elevator Rudists

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Color illustration of an ancient bivalve.
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Rudist Reefs

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

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An archaeologist arranges a deep-sea core.
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Sediment Cores

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