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 ...

Prehistoric time line, geologic time scale, photos, facts, maps, and more from National Geographic. Humans have walked the Earth for 190,000 years, a mere blip in Earth's 4.5-billion-year 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 ...

Discovered in 1989, the Acasta Gneiss is an outcrop of metamorphic rock dating from the earliest part of the Precambrian Era. It falls within the Hadean Period, which started with the formation of ...

The crater is from the Precambrian era — from the time earth was born 4600 million years ago until 600 million years ago.