Life expanded from simple, single-celled organisms to every current phylum of life known today over the course of roughly 40 million years. See Note at Burgess Shale.

Delivered to your inbox!… he found a shale outcrop, about the length of a city block, containing an unrivaled array of fossils from soon after the moment when complex life burst forth in dazzling profusion—the famous Post the Definition of Cambrian explosion to FacebookShare the Definition of Cambrian explosion on Twitter

The rapid diversification of multicellular animal life that took place around the beginning of the Cambrian Period.

Cambrian Explosion The rapid diversification of multicellular animal life that took place around the beginning of the Cambrian Period. It may represent the most important evolutionary event … It resulted in the appearance of almost all modern animal phyla. The word Cambrian was first used in this context by British geologist Adam Sedgwick (1785–1873) who named it after Cambria, the Latinized form of Welsh Cymru (“Wales”), where Britain's Cambrian rocks are best exposed.

Discovered in 1909 by Charles Walcott, … The term and concept was popularized by Stephen Jay Gould in the book Wonderful Life(1989).

For most of Earth's history, evolution has been a slow progression. You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!Learn a new word every day. The "Cambrian Explosion" refers to the sudden appearance in the fossil record of complex animals with mineralized skeletal remains. It resulted in the appearance of almost all modern animal phyla. : the emergence of many new organisms including most ancestral lineages of present-day animal species that occurred at the beginning of the Cambrian period This “Cambrian explosion” marks the advent (at least into direct evidence) of virtually all major groups of modern animals—and all within the minuscule span, geologically speaking, of a few million years.

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See Note at "Something I feel strongly about is that we're at the beginning stages of what I would call a 'He said: "During the Earth's history there have been several major events that shaped the evolution of life on our planet, such as the five big mass extinctions or the radiation of complex animals during the 'A major outstanding question in the natural sciences is what caused the 'The Edicarian Period was about 20 million years prior to emergence of modern animal life -- a period known as the The animal with rib-like segments running along its body was part of the Ediacara Biota that lived on Earth 20 million years prior to the "According to the scant amount of fossil evidence recovered till date, chancelloriids represented a lineage of spiny tube-shaped animals that came to be during the This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.https://www.thefreedictionary.com/Cambrian+Explosion The rapid diversification of multicellular animal life around the beginning of the Cambrian Period, resulting in the appearance of almost all modern animal phyla. The Cambrian explosion, or less commonly Cambrian radiation, was the relatively short evolutionary event, beginning around 542 million years ago in the Cambrian Period, during which most major animal phyla appeared, as indicated by the fossil record.


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