Cyanobacteria are known to be the oldest living organism that existed when present on Earth from 2.1 to 2.8 billion years ago.
- Young plants: 66 - 145 million years (time appears on Earth).
- Ant Martialis heureka: 120 million years.
- Orchids: 145 million years.
- Shark shark:> 150 million years.
- Horseshoe shrimp:> 200 million years.
- Wollemi Pine:> 200 million years.
- Sturgeon:> 200 million years.
- Clearing Japan:> 230 million years.
- Van Tue:> 280 million years.
- Pen tower grass:> 300 million years.
- Pine kauri: 298 - 358 million years.
- Handfin: 360 million years.
- Moss: 470 million years.
- Sam (horseshoe crab):> 445 million years.
- British snail: 500 million years.
- Jellyfish:> 550 million years.
- Hole-dwelling animals:> 580 million years.
- Duplicate morphology: 780 - 800 million years.
- Cyanobacteria: 2.1 - 2.8 billion years.