Named Youti yuanshi, the newly-identified euarthropod species fills an important gap in our understanding of how the arthropod body plan originated and became so successful during the Cambrian explosion. An anatomical overview of Youti yuanshi. Image credit: Smith et al., doi: 10.1038/s41586-024-07756-8. Youti yuanshi lived during the Cambrian period, over 520 million years, when the major animal groups we know today were first evolving. The species...
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