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The oldest known cyanobacteria fossils are known as stromatolites and fossils have been found that date back 2.72 billion years old. More recent discoveries however suggest that cyanobacteria may date back as far as 3.5 billion years into Earth's past.

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When did the first cyanobacteria appear?

Fossil evidence of Cyanobacteria indicates an age of up to 2.8 billion years.


What is the age of the oldest fossil on record?

The age of the oldest fossil on record is about 3.5 billion years old.


What is the age of the oldest fossil you have dated?

The oldest fossil that has been dated is approximately 3.5 billion years old.


What is the relative age of a fossil starfish?

the relative age of the rock where it was found.


A fossil that is found in the rock layers of only one geologic age and that is used to establish the age of the rock layers?

This fossil is called a index fossil. It is a species that is easily recognizable, widespread, and existed for a short period of time. By determining the age of the rock layer where the index fossil is found, geologists can establish the approximate age of the surrounding rocks.


When you know the relative age of a fossil what else do you know about it?

the relative age of the rock where it was found.


What is the age of the oldest found Mercedes car in the world?

48


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 type of dating would be used to determine the age of rocks by using the fossil?

By using the geologic time scale. Certain organisms are only found during certain times and if a fossil of one of these organisms is found then you can determine the relative age of the fossil.


How do you estimate the age of the Earth using fossil record?

Cannot be done as the Earth is much older than the oldest fossils.


What is the relationship between the age of fossil and what level it is found in the earth?

In general ; the deeper its found the older it is.


How the relative age of a fossil is determined by studying layers of rock?

It is determined because in layers of rocks the fossils are found so the layers of rocks give information to the scientist about the age of a fossil so like that the relative age of a fossil is determined.