500-Million-Year-Old Fossil Identified as Oldest Known Chelicerate

Apr 1, 2026 - 14:15

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500-Million-Year-Old Fossil Identified as Oldest Known Chelicerate

The surprisingly complex anatomy of Megachelicerax cousteaui. Image credit: Masato Hattori / Harvard University.

Paleontologists at Harvard University have described a large predatory arthropod from the Middle Cambrian of Utah featuring massive three-segmented chelicerae.

The post 500-Million-Year-Old Fossil Identified as Oldest Known Chelicerate appeared first on Sci.News: Breaking Science News.

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