Ancient predators once thought to be squids are now linked to arrow worms. The discovery highlights unexpectedly advanced features in these early animals. Fossils recently unearthed in North Greenland have provided key evidence to help scientists resolve a 500-million-year-old mystery involving ancient squid-like creatures. These organisms, known as nectocaridids, were once believed to be early […]



Summary

Fossil discoveries in Greenland have reclassified nectocaridids, ancient, squid-like predators, as early relatives of arrow worms, not squids. Previously enigmatic fossils, dating back 500 million years, reveal unexpectedly sophisticated features for such early organisms. This reclassification resolves a long-standing debate about nectocaridids’ evolutionary placement, shedding light on the surprisingly advanced nature of these ancient predators and their unexpected link to modern arrow worms. This shifts understanding of the early evolution of marine life.

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