In a recent study published in Current Biology, researchers introduced Uncus dzaugisi, a 555-million-year-old, worm-like organism found in the ancient rocks of Nilpena Ediacara National Park (NENP ...

Precambrian time covers the vast bulk of the Earth's history, starting with the planet's creation about 4.5 billion years ago and ending with the emergence of complex, multicelled life-forms ...

The Precambrian was the first super eon of Earth’s history. This division of time — about seven-eighths of Earth's history — lasted from the first formation of the planet (about 4.6 billion ...

During the Proterozoic era, oxygen produced by photosynthesizing bacteria collects in the oceans and then in the atmosphere. Iron present in exposed rocks reacts with this oxygen, and rust colors ...

Groove-like tracks on the ocean floor made by giant deep-sea single-celled organisms could lead to new insights into the evolutionary origin of animals, according to biologists.

The strange creatures that lived in the Garden of the Ediacaran more than 540 million years ago, before animals came on the scene, may have been much more dynamic than experts have thought.

Precambrian fossils, once thought ... there clearly were multicellular organisms in the Ediacaran, and (as ... One last look at software support as macOS 26 Tahoe winds down the Intel Mac era. 3.

Researchers from Vanderbilt University find fossils proving evolution was responsible for the world's first mass extinction 540 million years ago.

For decades now, the prevailing scientific theory explaining the Precambrian Avalon explosion — in short, the era dating back to about 685 to 800 million years ago in which multicellular ...