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Wisconsin Fossil: Legs Evolved Underwater for Land

Elijah Tobs
Tech
May 9, 2026 • 10:26 PM
2m

Wisconsin Fossil: Legs Evolved Underwater for Land
Source: Pexels

The Core Insight

Paleontologists discovered 35 exceptionally preserved fossils of Waukartus muscularis, an aquatic arthropod from 437 million years ago in Wisconsin's Silurian Brandon Bridge Formation. This stem-myriapod had a long segmented body, at least 11 leg sets, and unbranched uniramous limbs, traits typical of land arthropods like centipedes and millipedes. The find challenges prior views, showing these legs evolved underwater via exaptation, with exopods lost before terrestrialization, preserved in Waukesha Lagerstätte mudstones.
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Elijah Tobs
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About the Author

Elijah Tobs

As the founder and primary investigative voice at Kodawire, Elijah Tobs brings over 15 years of experience in dissecting complex geopolitical and financial systems. His work is centered on the ethical governance of emerging technologies, the shifting architectures of global finance, and the future of pedagogy in a digital-first world. A staunch advocate for high-fidelity journalism, he established Kodawire to be a sanctuary for deep-dive intelligence. Moving away from the ephemeral nature of modern headlines, Kodawire delivers permanent, verified insights that challenge the status quo and empower the global reader.

About the AuthorElijah Tobs

Tags

#paleontology#fossils#evolution#arthropods#myriapods#silurian#wisconsin fossils
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