Marine fossils come in many shapes and sizes. They range from early whale and dolphin bones to megaladon teeth that help us learn about the first sharks, and even small single-celled foraminifera.


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

A Collection of Cambrian Fossils

When you're standing in a museum surrounded by fossils, you can almost imagine drifting through time to when long-extinct creatures swam the ocean. Found all over the world, these fossils can be read by...
Fossil Whale Digsite at Cerro Ballena, Chile

The Whale Graveyard Whodunit

Chilean and Smithsonian paleontologists study several fossil whale skeletons at Cerro Ballena, next to the Pan-American Highway in Atacama Region, Chile, in 2011. Credit: Adam Metallo / Smithsonian Institution One of the ocean's tiniest...
Duria Antiquior – A More Ancient Dorset, 1830

Unearthing History: Mary Anning's Hunt for Prehistoric Ocean Giants

Although in reality an ichthyosaur and plesiosaur would have likely never battled, this widely shared lithograph by artist, geologist and paleontologist Henry De la Beche even inspired author Jules Verne to pen a similar...
A hippopotamus-like creature swims underwater

Flippers or Feet? An Extinct Mammal May Have Been Replaced By Today's Sea Cows

In the seagrass beds and kelp forests of the Oligocene-Miocene transition, nearly 32.5 to 10.5 million years ago, a four-legged, gnarly-toothed mammal roamed the Northern Pacific shores of what is now Japan, Canada and...

The Smithsonian Marine Collections

A behind the scenes look at the NMNH ocean-related collections and their importance to research and discovery.