When Did Lichen First Appear on Earth?

They determined that lichen-forming fungi first evolved about 250 million years ago, on average — long after those plants were rooted on land. The timing varies though, suggesting that different fungi developed their algae-hugging habits independently, and didn't inherit it from one main ancestor.

How old is the oldest lichen?

Many crustose lichens grow exceedingly slowly and live for thousands of years. Representatives of a species called the map lichen (Rhizocarpus geographicum) have been aged in the arctic at 8,600 years, by far the oldest living organisms on the planet.

How long has lichen been on Earth?

Lichens first appeared about 400 million years ago, so they have been around for a long time. Some individual species such as Hypogymnia physodes have been around for at least 25 million years and maybe for as long as 70 million years.

David Miller

David Miller

Executive Financial & Market Analyst

David Miller brings 15 years of experience in global economics, personal finance strategy, and market dynamics. He specializes in turning complex economic trends into actionable insights for everyday readers.