400 Million-Year-Old Fossil Unveils Secrets of Early Plant Evolution
Indian Defence Review • • science
Key Points:
- A new study published in New Phytologist examines a 400-million-year-old fossil of Horneophyton lignieri, revealing a unique vascular system that challenges previous assumptions about early plant evolution.
- Unlike modern plants with separate xylem and phloem systems, Horneophyton transported water and sugars together using transfer cells, indicating a simpler, more primitive vascular structure.
- This discovery suggests that early plant ancestors had a more complex vascular system than previously thought, which may have facilitated their transition from aquatic to terrestrial environments.
- Researchers used confocal laser scanning microscopy to create detailed 3D models of the fossil, uncovering novel conducting tissues that represent an intermediate stage in vascular evolution.
- The findings prompt a ree
