
Devonian-Carboniferous boundary
The Devonian-Carboniferous boundary marks a major transition around 359 million years ago, separating two significant geological periods. During this time, Earth experienced major changes in climate, sea levels, and life. The transition saw a decline in many marine species like coral reefs and fish, alongside the rise of various land plants and the beginning of extensive forests. These environmental shifts contributed to mass extinctions and set the stage for new ecosystems. Overall, this boundary represents a pivotal point in Earth's history, highlighting profound biological and geological transformation.