All articles tagged with #amniotes
Scientists scanned a skin-preserved 289-million-year-old Captorhinus aguti fossil from Oklahoma with neutron CT, revealing the oldest known rib-based breathing system in amniotes and offering key insight into how early land-dwelling vertebrates evolved more efficient respiration.
A 289-million-year-old mummy fossil of Captorhinus aguti from Oklahoma shows a complete rib cage and cartilage sternum, preserved in three dimensions, providing the oldest evidence of costal (rib-based) respiration in amniotes and suggesting this rib-powered breathing system underpins modern reptiles, birds, and mammals; neutron tomography enabled the reconstruction of its early breathing apparatus.