Cholesterol clinched it: A group of strange Precambrian fossils are among the oldest known animals in the rock record. The finding “gets rid of the more outlandish hypotheses about what these objects ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

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

The history of a major animal group, composed of millions of species of insects, arachnids, and nemotodes, has been elusive -- until now. A team has now identified the oldest known ecdysozoan in the ...

More than half a billion years ago, the world's first monster appeared. With bulging eyes and fearsome, grasping claws, Anomalocaris cruised the seas during the geologic time period known as the ...

Researchers led by Nagoya University discover penetrative trace fossils from the late Ediacaran of western Mongolia, revealing earlier onset of the "agronomic revolution" Nagoya, Japan -- In the ...

However, recently, fossilized eggs and embryos have been discovered in Precambrian deposits, which may help to shed light on early animal evolution. Here we show that mineralization of soft tissue, in ...

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 almost ...