Photograph of a fossil fish with the Digital Encyclopedia of Ancient Life written above it.

Digital Encyclopedia of Ancient Life


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Continued development and maintenance of this free textbook and the Paleontological Research Institution's (PRI's) broader Earth@Home project depends on support from visitors like you.

Donations of any amount are welcome.

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Overview

The Digital Encyclopedia of Ancient Life is an open access "textbook" about fossils and the history of life on Earth. Chapters will be added as they are written.

Contents

Phylum Cnidaria

  • 1. Class Anthozoa
  • 2. Class Hydrozoa (coming soon)
  • 3. Class Cubozoa (coming soon)
  • 4. Class Scyphozoa (coming soon)
Photograph of a rugose coral fossil.