Worm-like fossil This tiny fossil, measuring just a few centimeters, is significant as it is the oldest confirmed ecdysozoan and the only one known from the Precambrian era.

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 is the name given for 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 ...

Precambrian fossils, once thought to be embryos, reinterpreted as… something else Tiny fossils that were once thought to be indications of the first animal life … ...

Scientists have found It extremely difficult to fit these Precambrian species into the tree of life. That is because they lived in a time before organisms developed the ability to make shells or ...

Deep Time Intro | Precambrian Eon | Paleozoic Era | Mesozoic Era | Cenozoic Era Precambrian Eon: (4,550-543 mya) Hadean | Archaean | Proterozoic Proterozoic Era (2,500-543 mya) During the ...

Turns out we might be very wrong about how life arose on Earth. For decades now, the prevailing scientific theory explaining the Precambrian Avalon explosion — in short, the era dating back to ...

Scientists have found It extremely difficult to fit these Precambrian species into the tree of life. That is because they lived in a time before organisms developed the ability to make shells or ...

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