Measuring shells and skeletons encased in thousands of limestone samples has revealed that the sheer amount of living stuff ...

Throughout the eon, the curve shows that the global mean surface temperature has fluctuated between 52 and 97 degrees Fahrenheit. Earth’s current global mean surface temperature is 59 degrees ...

But the Cambrian began just 540 million years ago. The Cambrian marks the start of the current eon, the Phanerozoic, meaning “the age of visible life”. This is when multicellular organisms took over ...

The "Big Five" mass extinctions of the Phanerozoic Eon have long attracted significant attention from the geoscience community and the public. Among them, the Late Ordovician Mass Extinction (LOME ...

More information: Zunli Lu et al, Phanerozoic co-evolution of O 2-CO 2 and ocean habitability, National Science Review (2024). DOI: 10.1093/nsr/nwae099 Provided by Syracuse University ...

As geologists readily admit, the table has its shortcomings. While the most recent 543 million years—the Phanerozoic Eon—are heavily subdivided into three eras and 11 periods, the remaining 4.1 ...

Their analysis of the most recent 540 million years of Earth's evolution, known as the Phanerozoic Eon, finds that telescopes could better detect potential chemical signatures of life in the ...

This explosion of biological innovation is recognized as the beginning of the fourth and final (so far) eon of Earth's history — the Phanerozoic Eon, which continues to this day. Sponsor Message.

The atmosphere, the ocean and life on Earth interacted over the past 500-plus million years in ways that improved conditions for early organisms to thrive. Now, an interdisciplinary team of ...