201M-year-old Furcula granulifer fossils reveal seed ferns had complex leaf vein networks, suggesting these traits evolved earlier than thought.

201M-year-old Furcula granulifer fossils reveal seed ferns had complex leaf vein networks, suggesting these traits developed earlier than thought. Palaeontologists from the University of Vienna discovered the net-like veining in the late Triassic, indicating they evolved, died out, and re-evolved in Earth's history. The research, published in New Phytologist, was conducted in collaboration with institutions in Stockholm and Jerusalem.