How do you Find the age of a fossil in a layer of sedimentary rock between 2 igneous extrusions?

To find the age of a fossil in sedimentary rock between two igneous extrusions, you can use the principle of relative dating. The igneous extrusions, being younger than the sedimentary layers they cut through, provide a time frame. By dating the extrusions using radiometric dating methods, you can establish a range for the age of the sedimentary layers and the fossil within. Additionally, you can apply biOStratigraphy by correlating the fossil with known ages of similar fossils in other locations.