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 ...

During the Phanerozoic eon, which roughly spans the last 540 million years, the world's oceans have oscillated between states favouring the precipitation of aragonite/magnesium-rich calcite and ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...