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The Oldest Animals on Earth Have a Common Worm-Like Ancestor

Summary by scinexx.de
Ancient marine animals with unexpected kinship: Arm feet act like shells, but belong to a completely different animal group. A comprehensive comparison of their genetic information now supports their common descent with moss and horseshoe worms. The new family tree also indicates that in the course of evolution even the mineral base material of their shells has changed. St Andrews (Scotland). For more than 500 million years there are arm feet in…
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Ancient marine animals with unexpected kinship: Arm feet act like shells, but belong to a completely different animal group. A comprehensive comparison of their genetic information now supports their common descent with moss and horseshoe worms. The new family tree also indicates that in the course of evolution even the mineral base material of their shells has changed. St Andrews (Scotland). For more than 500 million years there are arm feet in…

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scinexx.de broke the news on Monday, October 19, 2026.
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