3 min read The Cambrian period, part of the Paleozoic era ... marine habitats ideal for spawning new life-forms. Nevertheless, the scale of the Cambrian Explosion is likely exaggerated due ...

Although these new life-forms spread worldwide ... Arthropods were the most diverse animal group in the Cambrian period and the Ordovician period that followed. The 452-million-year-old limestone ...

Life was flourishing long before the Cambrian "explosion ... kit enabled an unprecedented period of evolutionary experimentation -- and competition. Many forms seen in the fossil record of ...

As its name implies, this includes all of geological time prior to the Cambrian period ... and various asteroids -- forms from interstellar gas and dust. Prelude to life (4,550-3,900 mya) Planet ...

provides a unique perspective on the evolution of the earliest complex life forms. The fossil, named Youti yuanshi, dates back over 520 million years, during the Cambrian period, a crucial era for ...

"We see the same process as in the Cambrian period, 635 million years ago ... simple animal-like life forms such as those found in the fossils from this period,” he said.

These fossils, dated to approximately 535 million years ago, were found in the early Cambrian Kuanchuanpu biota ... This suggests that the juvenile and adult forms may vary due to metamorphosis ...

Then, at the beginning of the Cambrian Period, life opened its eyes ... suddenly there was a huge variety of colours, body forms and lifestyles. This dramatic increase in animal diversity, 545 to 530 ...

One of the best known examples of that latter phenomenon is the Cambrian Explosion—the geologic period some 530 ... the earliest (and strangest) forms of animal life to date at the site.

The fossils here record an explosion of life around 540 million years ago, during the Cambrian period, known as the ... triggered the evolution of more complex forms of life.

In the Cambrian many complex life forms emerged, most went extinct later ... uses their thermochronology modeling approach to study a period that extends well beyond a billion years.