520-million-year-old larva fossil reveals the origins of arthropods
Briefly

Youti yuanshi, a tiny larva from half a billion years ago, is exceptionally well-preserved, revealing insights into the evolution of arthropods from ancient to modern forms.
Researchers studying Y. yuanshi found common features with existing arthropods, shedding light on the internal anatomical changes that drove the diversification of this animal group.
The lobopodian Y. yuanshi, with its distinctive body structure and lobopods, remained three-dimensional, offering detailed insights into its external and internal anatomy.
Read at Ars Technica
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