POPA ReconResearchers identified the earliest known evidence of spider-like fangs in Urokodia, a 518-million-year-old fossil from China’s Chengjiang…
Researchers identified the earliest known evidence of spider-like fangs in Urokodia, a 518-million-year-old fossil from China’s Chengjiang site. X-ray analysis revealed pincer-like front limbs that mark the beginnings of chelicerae, linking this tiny Cambrian animal to the evolutionary origin of spiders, scorpions, ticks, and other chelicerates. https://www.nature.com/articles/s41586-026-10713-2
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