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a. pex: it might have lived in a very wide geographic region
Augustine Henry
Kasey Wavy
It must be distinct from other organisms
Wiki User
∙ 9y agoIt must be distinct from other organisms
Norman Bander
Abundance
Anonymous
B. It must have lived in a very wide geographic region.
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What is the index fossil of the Cambrian?
Trilobite
A fossil that is used to date surrounding rock layers is?
This is called an index fossil.
What is the difference between trace fossil and index fossil?
A trace fossil is one that merely indicates that an organism left evidence of its existence. Some examples would be burrows or footprints that appear in sedimentary rock. An index fossil is of an organism that dates to a particular time in the geologic record, the organism only appearing in a certain segment of that record. Index fossils are indicators of the age of the rock in which they are found.
What is a fossil used to date surrounding rock layers called?
Index fossils.
Does mucrospirifer make a good index fossil?
see, http://en.wikipedia.org/wiki/Index_fossils
What is an important characteristic of an index fossil apex?
It must have lived for a short geologic period of time.
What is a important characteristic of a index fossil?
to place events on the geologic time scale
What fossil used to compare the relative ages of fossils?
An index fossil. An index fossil's age is known, allowing scientists to know the relative age of other fossils based on their position relative to the index fossil. (Ex. If a fossil is deeper in the earth, it is older than the index fossil)
What makes a species a good index fossil?
An index fossil is used as an indicator of which era/epoch was preserved. The major characteristic necessary to be an index fossil include abundance, widely distributed, but lived for a short period of time.
What are index and what do geologists learn from them?
Index fossils are very important to geologists because they identify geological. The fossil snail is a particularly difficult animal to study.
What is fossils organisms that lived a short period of time called?
They are called index fossils.
What must be true for a fossil organism to be useful as a index fossil?
The absolute age of the index fossil was determine by radioactive dating or another absolute method
What two things make a fossil an index fossil?
hiii
What 3 requirements do index fossils have?
To be an index fossil, it must be widespread, commonly found (sometimes in groups) and have a short life span for which it lived. If a fossil meets all three of these requirements, it is considered an index fossil.
What is the index fossil of the Cambrian?
Trilobite
Fossil used to compare the relative ages of fossils?
index fossils
A fossil that is used to date surrounding rock layers is?
This is called an index fossil.
