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What is the difference between the Cambrian and preCambrian periods?
The difference between The differeence between the Cambrian and Pre-Cambrian is that the Cambrian fossils are ones of hard shell creatures because of thee evolved predators. The difference between Cambrian and Pre-Cambrian is that the Cambrian fossils are ones of hard shell creatures because of the evolved predators.rian fossils Cambrian and Pre-Cambrian is that the Cambrian fossils are ones of hard shell creatures because of the evolved predators.
What is the nature of rock during Pre Cambrian Era?
AnswerThe same three rock types existed in the Pre-Cambrian as exist today: sedimentary, igneous, and metamorphic. The main difference was that in the Pre Cambrian there were no large animals. As a result, there were no coral reef to make limestones. The Pre Cambrian is a very long period of time though (4 billion years). There are some major differences between early and late pre Cambrian rock.
What was before Triassic Period?
Carboniferous Silurian Ordovician Devonian Cambrian Pre Cambrian
What is the division of the Cambrian and Pre-Cambrian periods?
The Cambrian period occurred approximately 541 million years ago, marking the beginning of the Paleozoic Era. The Pre-Cambrian is a broad division of time before the Cambrian period, encompassing about 4 billion years of Earth's history, including the formation of the planet and the evolution of life prior to complex multicellular organisms.
What are the Laurentian Fields?
A large part of pre-Cambrian Canada.
When did the great depression happened?
In Pre-Cambrian Era with Franklin Deleno Roosevelt
What era did first life appear?
Pre-Cambrian. It's when bacteria first came about.
How many pages does Dominant Species - novel - have?
Dominant Species - novel - has 326 pages.
When was Dominant Species - novel - created?
Dominant Species - novel - was created in 2009-10.
What are some life forms of pre Cambrian time?
trilobites sponges clams pikiai and dinomischus
Which time segment represents the longest time of earth's history?
Pre-Cambrian Time Period
What phylum was dominant during the Cambrian Era about 540 million years ago?
During the Cambrian Era, the dominant phylum was Arthropoda, which includes ancestors of modern insects, crustaceans, and arachnids. This period saw a rapid diversification of life forms in what is known as the Cambrian Explosion, leading to the emergence of many major animal phyla. Other significant phyla during this time included Mollusca and Annelida. The Cambrian period marked a crucial evolutionary step, setting the foundation for complex life on Earth.
