Not that weâd expect less after the cliffhanger last season. If you havenât yet watched the September 23rd premiere of Chicago Fire, and somehow have managed not to find out who died, donât keep reading. If you have, please join me in my misery.
The Precambrian Super-Eon lasted from the formation of Earth 4,567 million years ago until the start of the Pharerozoic Eon 542 million years ago. It lasted 4.025 billion years. 90% of Earth's history.
The Precambrian is a longer span of geologic time leading up the the Paleozoic era. During the Cambrian period of the Paleozoic era, there was an explosion in the evolution of â¦ life forms. In the Precambrian, life was restricted to the sea.In the Paleozoic, life began on land.uring the Cambrian period of the Paleozoic era, there was an explosion in the evolution of â¦ life forms. In the Precambrian, life was restricted to the sea.