Cambrian explosion - Wikipedia
The Cambrian explosion (also known as Cambrian radiation[1] or Cambrian diversification) is an interval of time beginning approximately 538.8 million years ago in the Cambrian period of the early Paleozoic, when a sudden radiation of complex life occurred and practically all major animal phyla started appearing in the fossil record. [2][3][4] It...
Cambrian explosion | Evolution, Paleontology & Geology ...
Cambrian explosion, the unparalleled emergence of organisms between 541 million and approximately 530 million years ago at the beginning of the Cambrian Period. The event was characterized by the appearance of many of the major phyla (between 20 and 35) that make up modern animal life.
What Sparked the Cambrian Explosion? - Scientific American
Feb 16, 2016 · What Sparked the Cambrian Explosion? An evolutionary burst 540 million years ago filled the seas with an astonishing diversity of animals. The trigger behind that revolution is finally coming...
The Cambrian explosion - Understanding Evolution
Around 530 million years ago, a wide variety of animals burst onto the evolutionary scene in an event known as the Cambrian explosion. In perhaps as few as 10 million years, marine …
What sparked the Cambrian explosion? - Nature
Feb 16, 2016 · The Cambrian explosion, as it is called, produced arthropods with legs and compound eyes, worms with feathery gills and swift predators that could crush prey in tooth-rimmed jaws.
What is Cambrian Explosion? - Introduction, Causes, Facts ...
The Cambrian explosion occurred when factors contributing to metazoan-dominated ecosystems crossed through a series of ecological snowball effects. Oxygen being vital for animals, scientists speculate that the sudden increase of oxygen in the ocean could …
The Cambrian Explosion | Biology for Majors II - Lumen Learning
It is believed that most of the animal phyla in existence today had their origins during this time, often referred to as the Cambrian explosion. Echinoderms, mollusks, worms, arthropods, and chordates arose during this period.
Cambrian explosion - Simple English Wikipedia, the free ...
The Cambrian explosion is when many animal phyla first appeared in the fossil record. It happened 541 million years ago (mya). [1] [2] [3] Probably most had evolved before then, but that was their first appearance as fossils. [4] Before about 580 mya it …
13.4: The Cambrian Explosion - Biology LibreTexts
Feb 28, 2021 · It is believed that most of the animal phyla in existence today had their origins during this time, often referred to as the Cambrian explosion. Echinoderms, mollusks, worms, arthropods, and chordates arose during this period.
Current understanding on the Cambrian Explosion: questions ...
Jul 14, 2021 · The Cambrian Explosion by nature is a three-phased explosion of animal body plans alongside episodic biomineralization, pulsed change of generic diversity, body size variation, and progressive increase of ecosystem complexity.
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