Cambrian Explosion


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Related to Cambrian Explosion: Burgess Shale

Cambrian Explosion

n.
The rapid diversification of multicellular animal life around the beginning of the Cambrian Period, resulting in the appearance of almost all modern animal phyla.

Cambrian Explosion

The rapid diversification of multicellular animal life that took place around the beginning of the Cambrian Period. It resulted in the appearance of almost all modern animal phyla. See Note at Burgess Shale.
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This was during the Cambrian explosion, and most animals in the current fossil record first appeared here.
"Something I feel strongly about is that we're at the beginning stages of what I would call a 'Cambrian explosion' of audio content," Mr.
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 'Cambrian Explosion'.
A major outstanding question in the natural sciences is what caused the 'Cambrian explosion,' or the rapid diversification of animal life around 520m years ago where many modern types of organisms evolved.
This could be the most important shift since the Cambrian explosion of the smartphone.
In the famous "Cambrian explosion" of around half a billion years ago, a striking variety of new organisms--including the first-ever animals--pop up suddenly in the fossil record over a mere 70-odd million years.
The Edicarian Period was about 20 million years prior to emergence of modern animal life -- a period known as the Cambrian explosion.
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 "Cambrian explosion" of modern animal life.
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 Cambrian explosion - an evolutionary event that occurred 510 to 540 million years ago and marked a major surge in Earth's diversity.
In the study, the researchers claim that the Cambrian explosion - a period around 540 million years ago when most modern animals appeared - was the result of an extraterrestrial virus that crashed to Earth in a meteor impact.
This was a period known as the "Cambrian explosion", when representatives of all the major animal groups first appeared.