index fossil Antonyms

No Synonyms and anytonyms found

Meaning of index fossil

Wordnet

index fossil (n)

a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found

index fossil Sentence Examples

1. Trilobites are index fossils for distinguishing between different geological periods in the Paleozoic era.
2. Ammonites, characterized by their coiled shells, serve as index fossils for the Mesozoic era.
3. Graptolites are an extinct group of marine animals that are excellent index fossils for correlating sedimentary rocks.
4. Conodonts, minute tooth-like structures, are widely used as index fossils in petroleum exploration and stratigraphy.
5. Foraminifera, single-celled organisms with delicate shells, are valuable index fossils for marine environments.
6. The discovery of index fossils in a rock formation provides crucial information about its age and geological context.
7. Paleontologists rely heavily on index fossils to establish the relative ages of rock layers and reconstruct Earth's history.
8. Index fossils have been instrumental in unraveling the geological timeline and understanding the evolution of life on Earth.
9. Some index fossils, such as the Burgess Shale fauna, have provided remarkable insights into the diversity and complexity of early marine ecosystems.
10. The identification of index fossils in oil-bearing formations can help geologists pinpoint potential hydrocarbon reserves with greater accuracy.

FAQs About the word index fossil

What is the meaning of the word index fossil

a fossil known to have lived in a particular geologic age that can be used to date the rock layer in which it is found

What are the synonyms of the word index fossil

No synonyms found.

What are the antonyms of the word index fossil

No antonyms found.

What is the usage of word index fossil

Trilobites are index fossils for distinguishing between different geological periods in the Paleozoic era.

Ammonites, characterized by their coiled shells, serve as index fossils for the Mesozoic era.

How to use the word index fossil in a sentence?

Graptolites are an extinct group of marine animals that are excellent index fossils for correlating sedimentary rocks.

Conodonts, minute tooth-like structures, are widely used as index fossils in petroleum exploration and stratigraphy.