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 ...

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.

This could have occurred well before the Cambrian Explosion when most animal life began to form. Not everyone is in agreement with the findings of the study, though. "I'm not against the idea that ...

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.

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.