This question is very important because its answer is “ don’t and impossible to contain Fossils. This is true and universally 100% accepted, but a new paper published in High Impact Factor (6.5) claims that fossils exist in Igneous rocks. The paper was written by six professors from very reputable universities.
Unfortunately when geologists read their papers realize that these authors don’t differentiate between “On, in, and Off” in their paper. They found all fossils on the surface blocks of deformed igneous rocks (fractured and jointed deep igneous rocks). instead of “on the surface locks of the igneous rocks” they used “in the igneous rocks” and they divided their paper into two four main sections which are titled :
Fossil record in igneous crust. Fossil record in igneous oceanic crust, Fossil record in continental igneous crust, A morphological atlas of fossils in igneous rock. These titles are all wrong because their discussion denotes that they found the fossils on the surface of igneous rocks not inside them. Therefore their paper is unacceptable and terrible for the academic community. Because fossils can exist on the surface of all types of rocks and man-made materials. Moreover, they did not find fossils between the crystals of igneous rocks, but on the surface deep blocks of broken igneous rocks.