Discover Uncus dzaugisi, a 555-million-year-old worm-like fossil, offering the first Precambrian evidence of Ecdysozoa ...

A stunning fossil discovery in South Australia has provided a groundbreaking glimpse into one of evolution’s greatest ...

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 encompasses 86 percent of the history of Earth. As its name implies, this includes all of geological time prior to the Cambrian period. Hadean Era (4,550-3,850 mya) The Precambrian ...

A 555-million-year-old fossil found in South Australia provides crucial evidence for the Precambrian origins of Ecdysozoa, ...

the supercontinents of Gondwana 2 and Nuna (Columbia), as well as the geology of the Precambrian era. Earth scientists in the department also closely monitor global issues, such as energy security.

A lot has happened in that time. Earth formed and oxygen levels rose in the foundational years of the Precambrian. The productive Paleozoic era gave rise to hard-shelled organisms, vertebrates ...

Complex life on Earth may be older than previously thought ... A study published in August 2024 in the journal Precambrian Research detailed how formations in rock samples, thought to be fossils ...

Ecdysozoans are the largest, most species-rich animal group on Earth. Although more than half of all animals are ecdysozoans, scientists have long grappled with the lack of evidence of ecdysozoan ...