GUIDE FOSSIL
(noun)Did you mean?
Definitions
There is 1 meaning of the phrase
Guide Fossil.
Guide Fossil - as a noun
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 (Exact Relations)
index fossilExample Sentences
"The discovery of the guide fossil provided important clues about the age of the rock formation."
"Scientists use guide fossils to determine the relative age of sedimentary layers."
"The guide fossil found in this layer indicates that it is from the Cretaceous period."
"The presence of the guide fossil suggests that the species lived in this area millions of years ago."
"Researchers rely on guide fossils to establish a chronological sequence of events in Earth's history."
