About 200 million years after the broader separation of animals, plants, and fungi, red and green algae evolved from a common ancestor. Green algae later gave rise to land plants, with all land plants descending from green algae around 475 million years ago. Both green algae and land plants share chlorophyll, a key to their photosynthetic abilities. Green algae are generally considered the first true plants, while red algae remain classified as algae.
Red-Green Algae Ancestors Split
1.5 Billion Years Ago (+/- 100 million years)
Chloroplast refinement, chlorophyll variants
That Science Story,
was first published on TST 2 years ago.
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