The Cambrian explosion is an apparently sudden increase in fossils marking the separation between Precambrian rocks and Cambrian rocks. At one time this was believed to mark the beginning of multicellular life, but in fact it only marks the evolution of hard body parts (most of which were made of calcium carbonate). It turns out that there were as many multicellular organisms in the late Precambrian as there were during the Cambrian explosion at the beginning of the Cambrian, but the lack of hard body parts in those organisms made the formation of easy to identify fossils of those organisms much rarer.
Cambrian Pottery ended in 1870.
During the Cambrian period, life began to appear on the planet.
cerebral concussion
He was talking in 1919 about the peace process and meant it was a temporary peace, leading to another war.
wild fires caused by natural causes like lightning
The Ediacarian fauna are from the Cambrian Explosion. The Cambrian Explosion occurred in the Cambrian period. The Cambrian period was part of the Paleozoic era.
The sudden appearance of most of the major animal phyla within the fossils early in the Cambrian period. This caused a sudden diversification of life.
Cambrian.
Any time you see an animal. The Cambrian explosion was when the different kinds of animals developed - all the different animal phylums. So if you see an insect on a mammal you see the Cambrian explosion.
The term "Cambrian explosion" is a bit misleading because the diversification of early metazoans actually occurred over tens of millions of years, rather than a sudden event. Some scientists prefer to refer to it as the "Cambrian radiation" to better capture the gradual nature of the process. This prolonged period of diversification resulted in the emergence of a wide range of complex multicellular organisms.
life during the early Cambrian period
The sudden increase in invertebrate fossil diversity
The Cambrian period is also called the "Cambrian explosion" due to the sudden appearance and diversification of many major animal groups.
Single celled organisms.
I assume you are referring to the Cambrian Explosion... It was a period on Earth many millions of years ago after heavy bombardment from asteroids. A huge "explosion" of species and life came to form on Earth.
No, the Cambrian explosion was not a volcanic eruption. It was a period of rapid diversification of multicellular lifeforms that occurred around 541 million years ago, marking the beginning of the Paleozoic era.
The Cambrian Period is called the Cambrian Explosion because it is characterized by a sudden increase in the diversity of multicellular life forms, including the appearance of many major groups of organisms. This period saw the rapid evolution and proliferation of complex marine life forms, marking a significant point in the history of life on Earth.