Absolute dating methods fossils
some of these methodologies are referenced in the other answers.there are several entries in wikipedia which provide good overviews of the question and numerous web sites that explain how to go about archaeological, paleontological and geological as dr.
musch below lists a series of dating techniques usd to determine the ags of fossils and artifacts.
Micropaleontologists and palynologists work with microscopes or scanning electron microscopes (SEM).
Paleontologists frequently work in conjunction with other scientists utilizing any number of other geochronology methods.
Paleontologists examine fossils of all kinds, but micropaleontology (the study of microscopic organisms) is perhaps the most useful method of dating because the remains of tiny organisms tend to be better preserved, more widely distributed, and may provide more precise age determinations than larger shells or bone material.
Palynologists separate pollen from sediments for correlation and paleoenvironmental reconstructions.
the basıc concept ıs stratigraphy: the earliest deposition is at thee top while the oldest is t the bottom. when you excavate you actually can see the layers of deposition as actual dating process is far beyond the scope of this venue but rather entails several graduate school courses in geochronolgy and Chronostratigraphy an excellent over view of dating in geology paleontology and archaeology may be seen at any particular excavation one must determine the key artifact, fossil and geological features, crating a relative chronology.
Paleontology is limited to the study of sedimentary deposits where fossils are preserved, but can be used in establish relative ages of nearby igneous intrusion, faults, and other geologic features.
Paleomagnetic dating is based on correlation of measurements derived from oriented samples to established records of variations of the Earth's magnetic field through time.
Paleomagnetism can be used in conjunction with other correlation or dating methods to establish the age or rocks or to decipher changes in a rock's orientation through time.
Typically, paleontological information is used in conjunction with other methods of relative or absolute age dating.
The most important tools for paleontologists are collections of fossils and paleontological reports (with fossil plates for identification) from other locations in the region or around the world.