Modern Tech Reveals Secrets of 250M-Year-Old 'Elgin Marvel' Fossil

Researchers have used high-resolution 3D imaging to study the brain cavity of Gordonia, a 250-million-year-old protomammal, revealing early signs of mammalian brain evolution. Despite its brain resembling that of reptiles more than modern mammals, the relative size of Gordonia's brain suggests early intelligence that would later characterize mammals. The study highlights the significant evolutionary changes that mammalian brains underwent over millions of years.