James St. John · Original image & credits · CC BY 2.0
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EXTINCT LIFE
Dunkleosteus
Meet dunkleosteus—one more extraordinary life to discover.
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A reference overview
Dunkleosteus is an extinct genus of large arthrodire ("jointed-neck") fish that existed during the Late Devonian period, about 382–358 million years ago. It was a pelagic fish inhabiting open waters, and one of the first vertebrate apex predators of any ecosystem. Fossils of Dunkleosteus have been found in the United States, Canada, Poland, Belgium, Morocco, and Russia.
Overview excerpt from Wikipedia contributors · Dunkleosteus, under CC BY-SA 4.0. Excerpt may be shortened. Overview retrieved 2026-10-09.
