The Cambrian ( / ˈkæmbri.ən, ˈkeɪm -/ KAM-bree-ən, KAYM-) is the first geological period of the Paleozoic Era, and the Phanerozoic Eon. [5] . The Cambrian lasted 51.95 million years from the end …

Oct 18, 2025 · Cambrian Period, earliest time division of the Paleozoic Era, extending from 538.8 million to 485.4 million years ago.

The Cambrian Period marks an important point in the history of life on Earth; it is the time when most of the major groups of animals first appear in the fossil record.

Learn more about a time period marked by an intense burst of evolution. The Cambrian period, part of the Paleozoic era, produced the most intense burst of evolution ever known. The Cambrian...

The Cambrian period is divided into three epochs: The Early Cambrian (also Lower Cambrian, Caerfai, or Waucoban), the Middle Cambrian (St Davids or Albertian), and the Late Cambrian or Furongian …

The Cambrian was the first geological period of the Paleozoic era, extending from approximately 541.0 million to 485.4 million years ago. It is divided into four epochs: the Furongian, the Miaolingian …

Oct 28, 2012 · The Cambrian* Period begins the Phanerozoic Eon, the last 542 million years during which fossils with hard parts have existed. It is the first division of the Paleozoic Era (542Ma -251Ma).

Cambrian Period Diversification of algae and animals The Cambrian Period is the first Period in Phanerozoic Eon and the Paleozoic Era, occurring after the Neoproterozoic Period and before the …

Oct 18, 2025 · Cambrian rocks have a special biological significance, because they are the earliest to contain diverse fossils of animals. These rocks also include the first appearances of most animal …

The Cambrian marked a profound change in life on Earth; prior to the Cambrian, the majority of living organisms on the whole were small, unicellular and simple; the Precambrian Charnia being exceptional.