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Abundant fossil evidence did not appear in the geologic record until about?
The abundant fossil evidence appeared in the geologic record around 541 million years ago during the Cambrian period when complex organisms started to evolve. This sudden appearance of diverse life forms is known as the Cambrian explosion.
When did abundant fossil evidence appear in the geologic record?
Abundant fossil evidence first appeared in the geologic record during the Cambrian Period, around 541 million years ago. This period marked the rapid diversification of multicellular organisms, leading to the Cambrian Explosion, which left behind a rich fossil record of early marine life.
Which organisms have produced the oldest fossil evidence?
The oldest fossil evidence is from single-celled organisms such as bacteria and archaea. These microorganisms have been found in rocks dating back over 3.5 billion years, providing some of the earliest known evidence of life on Earth.
How do you tell how old a fossil is by the rock layer?
You can determine the relative age of a fossil by looking at the position of the fossil in the rock layers. The closer a fossil is to the surface, the younger it is relative to fossils found deeper in the layers. To determine the absolute age of a fossil, scientists use radiometric dating techniques on the surrounding rocks to determine the age of the rock layer the fossil is found in.
What provides evidence of a warm humid climate at the beginning of the Cenozoic Era?
Fossil evidence of tropical plants and animals found in regions that are currently temperate zones, as well as sediment deposits indicating warm, moist conditions, provide evidence of a warm and humid climate during the beginning of the Cenozoic Era.
On what continent was the earliest fossil evidence of human found?
the first fossil was found 2.6 million years ago and was a spearhead
When did abundant fossil evidence appearing the geologic record?
540 Million years ago
What is the earliest known evidence of people using roses?
The rose is, according to fossil evidence, 35 million years old.
What percent of geologic time is represented by abundant fossil evidence?
The planet Earth is about 4,600 million years old. Fossil evidence becomes abundant in the geological record in the Cambrian Era, which was about 550 million years ago (when hard shelled animals appeared) Therefore (550/4600)*100 = roughly 12% of Geological time contains abundant fossil evidence. However, please note that (non abundant) fossil evidence goes back about 3600 million years, (3600/4600)*100 = roughly 73% of Geologic time.
Abundant fossil evidence did not appear in the geologic record until about?
The abundant fossil evidence appeared in the geologic record around 541 million years ago during the Cambrian period when complex organisms started to evolve. This sudden appearance of diverse life forms is known as the Cambrian explosion.
When did man first walks on two legs?
4.2 to 3.9 million years ago (oldest fossil evidence)
What are the raccoon's ancestors?
Fossil evidence shows that the raccoon family first developed in Europe 25 million years ago.
When did abundant fossil evidence appear in the geologic record?
Abundant fossil evidence first appeared in the geologic record during the Cambrian Period, around 541 million years ago. This period marked the rapid diversification of multicellular organisms, leading to the Cambrian Explosion, which left behind a rich fossil record of early marine life.
How long has the raccoon been around?
The first fossil evidence of the raccoon family was found in Europe and dates back 25 million years.
When did abundant fossil evidence first appear in the geologic record?
Abundant fossil evidence first appeared in the geologic record during the Cambrian Period, around 541 million years ago. This period is known as the "Cambrian Explosion" because it marked a rapid diversification of marine life and the emergence of many major animal groups.
How long have sea otters been around?
With use of genetic and fossil evidence, sea otters have been around for at least 5 million years.
How many years ago did raccoon undergo speciation?
Fossil evidence shows that raccoons originally developed in Europe about 25 million years ago.
