ALFRED PASIEKA / SCIENCE PHOTO LIBRARY ALFRED PASIEKA / SCIENCE PHOTO LIBRARY
Goniatite fossil from the Carboniferous period, around 350 million years ago. A goniatite is a type of ammonite, a cephalopod mollusc related to the modern nautilus. It inhabited warm shallow seas throughout the world. This goniatite was found in Rissani, Morocco, and inhabited a sea in what is now the Sahara Desert.
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