Permian period News

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• Mummified 289-million-year-old reptile reveals earliest evolution of rib-powered breathing on land

  Published: Apr 23, 2026

  Section: Research

  A remarkably preserved Captorhinus aguti fossil discovered in an Oklahoma cave system has provided the first direct evidence of costal aspiration breathing in early amniotes. The m...

• Ancient 289-Million-Year-Old Mummy Discovered in Oklahoma Cave Reveals Origins of Human Breathing Mechanism

  Published: Apr 8, 2026

  Section: Research

  Harvard and University of Toronto researchers have identified the oldest known example of rib-powered breathing in a mummified reptile from the early Permian period. The fossil, wh...