juhfossiilideks
Juhfossiilideks refers to a specific type of fossil that is particularly useful for determining the relative age of rock layers. These fossils, also known as index fossils or guide fossils, are characterized by several key traits. They must have existed for a relatively short period of time but had a wide geographic distribution. Furthermore, the organisms that formed these fossils must have been abundant and easily recognizable.
The principle of faunal succession states that different layers of sedimentary rock contain different fossil assemblages,
Common examples of organisms that form juhfossiilideks include certain species of trilobites, ammonites, and graptolites, which