EARTH SCIENCE
PALEONTOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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is an organism that lived for a short amount of time, were plentiful, and lived in a wide geographical area
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are fossils that have spaces inside that are filled in with minerals from groundwater
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is a thin film of carbon remains of a once living organism that was preserved as a fossil
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are the remains of bones, teeth, or shells of once living organisms
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Detailed explanation-1: -What is index fossil ? An index fossil is a fossil of a species that was present for a relatively short period of time and had a wide geographic distribution, making it useful for determining the age of rocks and the relative ages of rocks in different locations.
Detailed explanation-2: -index fossil, any animal or plant preserved in the rock record of the Earth that is characteristic of a particular span of geologic time or environment. A useful index fossil must be distinctive or easily recognizable, abundant, and have a wide geographic distribution and a short range through time.
Detailed explanation-3: -Index fossils are fossils that are widespread but only existed for a short period of time.
Detailed explanation-4: -Index fossils are the remains of plants and animals that lived for a limited period. Best index fossils are common, widely distributed, and easy to identify. Some of the most common index fossils are ammonites, trilobites, and graptolites.
Detailed explanation-5: -There are some types of index fossils which include Ammonites, Brachiopods, Graptolites, Nanofossils and Trilobites. Ammonites: The fossil of ancient marine animals is said to be known as an ammonite index fossil. During the Mesozoic era, they were common (245 to 65 million years ago ).