Scientists unearthed a 242-million-year-old fossil, Agriodontosaurus helsbypetrae, in Devon, pushing back the origins of lepidosaurs. This reptile, the oldest known of its kind, challenges previous assumptions about early skull structures and feeding habits. Unlike modern relatives, it lacks key features but possesses unique, large teeth, suggesting diverse evolutionary paths within the group.Scientists unearthed a 242-million-year-old fossil, Agriodontosaurus helsbypetrae, in Devon, pushing back the origins of lepidosaurs. This reptile, the oldest known of its kind, challenges previous assumptions about early skull structures and feeding habits. Unlike modern relatives, it lacks key features but possesses unique, large teeth, suggesting diverse evolutionary paths within the group.