A fascinating fossil discovery in remote South Australia sheds light on an important chapter in the history of life on Earth: the origins of Ecdysozoa, a vast superphylum that includes molting animals ...

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 ...

The early earth / editor, D.R. Nelson. Earth's formation and first billion years / D.R. Nelson. The early Precambrian stratigraphic record of large extraterrestrial impacts / B.M. Simonson, G.R.

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

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 ...

Ancient plate tectonics in the Archean period differs from modern plate tectonics in the Phanerozoic period because of the higher mantle temperatures inside the early Earth, the thicker basaltic crust ...

Everyone has a past. That includes the millions of species of insects, arachnids, and nematode worms that make up a major animal group called the Ecdysozoa. Until recently, details about this group’s ...