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Reconstructed Chinese Skull Suggests Denisovan Lineage and Earlier Human Divergences

Experts caution the sweeping evolutionary timeline proposed remains tentative without DNA evidence.

Overview

  • Virtual restoration of Yunxian 2, dated to roughly 940,000–1.1 million years old, was published in Science after decades of uncertainty.
  • Morphology aligns the cranium more with Homo longi (“Dragon Man”) and the Denisovans than with classic Homo erectus.
  • The study's phylogenetic model estimates a Homo sapiensDenisovan split around 1.32 million years ago, with Neanderthals diverging earlier near 1.38 million years ago.
  • Researchers used CT scanning, light imaging and digital modeling to correct severe deformation, with ages constrained by surrounding sediments and animal fossils.
  • Outside specialists praised the reconstruction but questioned the far-reaching evolutionary claims, and the team plans further tests and study of a third Yunxian skull.