The Fossil that Changed the World

Meet the Chicago Archaeopteryx

The Chicago Archaeopteryx is a rare fossil that reveals the evolutionary link between dinosaurs and birds. The fossil is on display inside the Griffin Halls of Evolving Planet.

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Exhibition Summary

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Exhibition Highlights

See a real, Jurassic-era Archaeopteryx fossil up-close
Watch Archaeopteryx come to life in a 3D animated projection
Discover the importance of this small but mighty dinosaur
Archaeopteryx preparation video

What is an Archaeopteryx?

Every bird you’ve ever seen— every pigeon at a bus stop, every penguin at the zoo— is a living, breathing dinosaur. Birds are the only group of dinosaurs that survived the mass extinction caused when an asteroid hit the Earth 66 million years ago. A fossil called Archaeopteryx, with feathers, hollow bones, clawed wings, fifty tiny teeth, and a long bony tail, is the earliest known dinosaur that also qualifies as a bird.

How do you pronounce Archaeopteryx?
This is the Chicago Archaeopteryx—one of only a dozen fossils of this animal ever found. Scientists will be studying this fossil for years to come.

Photographer(s):Delaney Drummond

(c) Field Museum

Unlike other dinosaurs that used feathers only to keep warm, or, perhaps, for display, Archaeopteryx was feathered, and was able to fly and glide. This trait inspired the name Archaeopteryx, which translates to “ancient wing.” Impressions of feathers are extraordinarily well preserved in the Chicago Archaeopteryx.

Photographer(s):Delaney Drummond

(c) Field Museum

Image slideshow

Gallery

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A cast of the Chicago Archaeopteryx sits beside the fossil so visitors can touch the specimen’s intricate, delicate features.

Photographer(s):Kyle Flubacker 2024

Archaeopteryx Timeline

  • 201 million years ago
  • 150 million years ago
  • 66 million years ago
  • 1859
  • 1861
  • 1868
  • 1926
  • 1964
  • 1986
  • 1996
  • 2022
  • 2024
201 million years ago

The Jurassic Period begins.

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There are 10 Archaeopteryx on public exhibition. The Chicago specimen is the only one in a major city in the Western Hemisphere.

Meet the Team

Countless people devoted their time and expertise to procuring, preparing, and researching the Chicago Archaeopteryx and sharing it with the world. Here are three of the leaders of the project from the Field Museum.

Archaeopteryx press kit

Multimedia materials are available to accompany articles and other press mentions (with proper credit and copyright adherence). Unless otherwise noted, all materials are © Field Museum.

Acknowledgments

Acquisition of the Chicago Archaeopteryx was made possible through the generosity of the Walter Family Foundation and a challenge grant from an anonymous donor.

Additional support is provided by:

Diana and David Moore; Jessica and Steve Sarowitz; Nicholas J. Pritzker; Lauer Foundation for Paleontology, Science and Education, Bruce Lauer and René Lauer; Marshall B. Front Family Charitable Foundation/Laura De Ferrari and Marshall B. Front

Corporate funding provided by

Chicago Archaeopteryx Collection

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