indexfosszíliák
Indexfosszíliák, also known as index fossils or guide fossils, are particularly useful in paleontology and stratigraphy. These are fossils of organisms that were widely distributed geographically and existed for a relatively short period of geological time. Their presence in rock layers helps geologists determine the age of those layers and correlate them with rock layers found elsewhere. The characteristics that make an organism suitable for becoming an index fossil include rapid evolution, widespread distribution, and a distinctive morphology that allows for easy identification.
The principle behind using index fossils is that the same species of organism would have lived and
Common examples of index fossils include certain types of ammonites, trilobites, and foraminifera. These organisms often