Posted by Dr. S. P. Dorugade
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Botany learning resource
Geological Time & Plant Evolution
Explore how life and plants changed through Earth's history. Select a period to study its environment, plant groups and fossil evidence.
Geological timeline · oldest to youngest
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Selected interval
Silurian Period
443.1 to 419.62 million years ago · Paleozoic Era
Small plants with water-conducting tissues spread across land. Cooksonia is a well-known early land-plant fossil.
Key botanical features
- Cooksonia had simple branching stems.
- Spore cases formed at the tips of its stems.
Explore a geological age
Selected age
430 million years ago
Drag the control or use the arrow keys to travel through Earth's history. The interval and botanical event update as you move.
Silurian PeriodEarly vascular plants were spreading on land.
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Study note: Geological boundaries are dated using the international geological time scale. The timing of plant origins is estimated from fossil and evolutionary evidence. Cyanobacteria are photosynthetic bacteria, not true plants.
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