A team of scientists from the University of California have discovered a rare set of fossils that helps to bridge the gap between two major stages of evolution. The fossils, which date back to the Ordovician period (460 to 445 million years ago), provide evidence of a transitional step between two major stages of evolution that had previously been disconnected. The fossils are significant because they provide insight into the evolutionary process that has taken place over millions of years, and how organisms have changed over time.

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source: Phys.org