Cambrian Explosion

Also found in: Dictionary, Wikipedia.
Related to Cambrian Explosion: Burgess Shale
A 1 million–12 million-year burst of evolutionary activity that occurred ±525 million years ago, during which the diverse life forms that now exist on the planet evolved. Before that time, most organisms were simple, composed of individual cells occasionally organized into colonies
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
References in periodicals archive ?
Findings of the study support the theory that the oxygen content of the atmosphere is a major control on animal evolution, and shows that the Cambrian explosion was a time when pioneering animals evolved rapidly into modern animal phyla through a period of extreme, oxygen-driven 'boom and bust' with multiple radiations and extinctions.
The Cambrian explosion had been unearthed, and beneath those Cambrian creatures their Precambrian predecessors should have been waiting--and weren't.
Afterward, technology further enables "the greatest diversification of the total terrestrial gene pool since the Cambrian Explosion."
Contained within this profusely illustrated study of the last 541 million years are the Cambrian explosion, the age of crinoids, and five mass extinctions, including the one that wiped out the dinosaurs.
"We need to let this technology grow as much as possible, as we're about to see the Cambrian explosion in neural networks," he said.
Similarly, Mermaids: Cambrian Explosion, 2016, draws on The Little Mermaid, with Takata appearing as the protagonist, who sings of her desire to be human.
Another "new" hypothesis the authors develop in several places is that major events such as the Cambrian explosion and particular extinctions were started by "true polar wander" events.
Japanese scientists believe our ocean-dwelling cousins can be traced back to the Cambrian explosion, a surge in evolution which happened 550million years ago.
That's because, just about 260 million years after the era's end, the Cambrian explosion produced a riot of complex animals.
J.S: When you stir together 5,000 people and 10,000 ideas and posts, the result is a Cambrian explosion of new ideas and designs.
In her Cambrian Explosion series, the firing covers most of the pieces' surfaces with a rough matte surface.
YOU'VE HEARD HOW humanity is currently causing a new mass extinction rivaling, in rate and numbers of species lost, the other five such events that have occurred since the Cambrian explosion 530 million years ago filled our planet with complex life.