Places such as Purgatory Chasm and Millstone Hill, in Worcester's Green Hill Park, bear witness to the work of the glaciers.

Precambrian Time. Learn more about the period that occurred 4.5 billion to 542 million years ago. 4 min read. Precambrian time covers the vast bulk of the Earth's history, ...

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 ...

A team has now identified the oldest known ecdysozoan in the fossil record and the only one from the Precambrian period. Skip to main content. Your source for the latest research news.

Ancient giant stromatolites used to be widespread in Earth’s Precambrian era, which encompasses the early time span of around 4.6 billion to 541 million years ago, but now they are sparsely ...

He said, “Precambrian makes up over 80 percent of Earth’s history. There might have been bacteria then, but there were no trilobites. Those came during the Paleozoic Era.” ...

Ancient giant stromatolites used to be widespread in Earth’s Precambrian era, which encompasses the early time span of around 4.6 billion to 541 million years ago, but now they are sparsely ...