cenozioc
Index fossils
The study of strata is called stratigraphy. Stratigraphy can be used to determine an approximate age of fossils in rocks.
The study of strata is called stratigraphy. Stratigraphy can be used to determine an approximate age of fossils in rocks.
The study of strata is called stratigraphy. Stratigraphy can be used to determine an approximate age of fossils in rocks.
I think they are called Index Fossils...
Index fossils are used to date rocks by correlating the fossils found in the rock layers with known ages of those fossils. Index fossils are distinctive, widespread, and lived for a relatively short period of time. By identifying these fossils in a rock layer, scientists can infer the age of the rock based on the age range of the known fossil.
Geologists use fossils to determine the age of rocks through a process called biostratigraphy. They identify the specific group of fossils present in the rock layer, known as index fossils, that have a known age range. By comparing the index fossils to a geological time scale, geologists can estimate the age of the rock layer.
fossils can be used to determine the relative age of rock layer by using the classification of fossils to find the relative ages of rocks in which fossils are found. :] hoped i helped you out.
nunya
The fossil record is thought to organize things in age order with the older rocks behind at the bottom and newer rocks being at the top.
Stegosaurus fossils actually date to between 155 and 150 million years ago. Using various methods, paleontologists are able to determine the age of rocks. Then they know that fossils in those rocks are the same age as the rocks. In the case of Stegosaurus, they know the rocks are between 155 and 150 million years old, and they know the Stegosaurus fossils are the same age.
Because, similar fossils could be found on different continents, in rocks of the same age.