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 ...

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

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 world, leaving fossils we find today. But we ...

Oddly, there is no other supereon after the Precambrian, just the Phanerozoic eon ranging from the Cambrian explosion to the present. The Precambrian can be broken into three eons, Hadean, Acrhaean, ...

While the most recent 543 million years—the Phanerozoic Eon—are heavily subdivided into three eras and 11 periods, the remaining 4.1 billion years are lumped into a single eon, the Precambrian, and ...

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 ...

The start of the Phanerozoic Eon 540 million years ago is marked by the Cambrian Explosion, a point in time when complex, hard-shelled organisms first appeared in the fossil record. Although ...

The ratio of magnesium to calcium in sea water is thought to have influenced the skeletal mineralogy of certain marine calcifiers throughout the Phanerozoic eon. A fresh look at old data suggests ...

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 ...