EARTH SCIENCE
FOSSILS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Which of the following is a requirement of index fossils?
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Lived over a vast time period but found only in one location
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lived only for a short time but was found all over the world
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Not a prevalent species at any time
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Still alive today
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Explanation:
Detailed explanation-1: -A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time. Index fossils are the basis for defining boundaries in the geologic time scale and for the correlation of strata.
Detailed explanation-2: -Index fossils are fossils that are widespread but only existed for a short period of time.
Detailed explanation-3: -An index fossil must be distinctive, widespread, and short-lived. It indicates a specific period of time.
Detailed explanation-4: -Index fossils are of organisms that lived over a wide area. They lived for a fairly short period of time.
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