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Phys.org·3 min read·hard

Early Cambrian fossil uncovers key buoyancy structure at the dawn of cephalopod evolution

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Chinese Academy of Sciences
Early Cambrian fossil uncovers key buoyancy structure at the dawn of cephalopod evolution
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Researchers have discovered a 520-million-year-old fossil of a new cephalopod species, Eoceras shaanxiense, in South China. This find provides critical evidence regarding the early evolution of the siphuncle, a structure essential for buoyancy control in ancient marine life.

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