500-million-year-old “squid” were actually ferocious worms

ScienceDaily
Aug 25, 2025, 11:14 am122 ptsTrending
A stunning discovery in North Greenland has reclassified strange squid-like fossils, revealing that nectocaridids were not early cephalopods but ancestors of arrow worms. Preserved nervous systems and unique anatomical features provided the breakthrough, showing these creatures once ruled as stealthy predators…

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