guide fossil Sentence Examples

  1. The fossilized remains of a fern served as a guide fossil, revealing the age of the rock layer.
  2. The presence of trilobites in the sediment indicated that the rock was formed during the Cambrian period, serving as a guide fossil for that era.
  3. Geologists use guide fossils to correlate different rock layers and establish the chronological sequence of events in Earth's history.
  4. The abundance of brachiopods in a particular stratum acted as a guide fossil, suggesting shallow marine conditions at the time of deposition.
  5. The discovery of ammonites in the rock formation helped researchers identify it as belonging to the Mesozoic era, thanks to their value as guide fossils.
  6. Foraminifera in deep-sea sediment cores serve as guide fossils, providing insights into past environmental conditions and climate changes.
  7. The guide fossil of the Paleozoic era, graptolites, allows geologists to determine the relative age of sediment layers containing them.
  8. The presence of index fossils, such as the conodont Hindeodella, provides a precise guide to the boundary between different geological periods.
  9. The identification of echinoids in a rock sample guided paleontologists in determining the age and depositional environment of the sediment.
  10. Guide fossils play a crucial role in paleontology, enabling researchers to reconstruct ancient ecosystems and understand the evolutionary history of life on Earth.

guide fossil Meaning

Wordnet

guide 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

Synonyms & Antonyms of guide fossil

No Synonyms and anytonyms found

FAQs About the word guide 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

No synonyms found.

No antonyms found.

The fossilized remains of a fern served as a guide fossil, revealing the age of the rock layer.

The presence of trilobites in the sediment indicated that the rock was formed during the Cambrian period, serving as a guide fossil for that era.

Geologists use guide fossils to correlate different rock layers and establish the chronological sequence of events in Earth's history.

The abundance of brachiopods in a particular stratum acted as a guide fossil, suggesting shallow marine conditions at the time of deposition.