A couple of years ago researchers at my old university of Bristol demonstrated in the laboratory that at a temperature of 210°C and a pressure equivalent to a depth of 7,900 feet under water recently dead creatures and plants enclosed in clay fossilised in just four hours. Lizards, beetles, leaves and feathers all turned into fossils that were indistinguishable from real ones even when scanned in an electron microscope. The research was reported in the scientific journal Palaentology in a paper entitled Sediment-encased maturation: a novel method for simulating diagenesis in organic fossil preservation by E.Saitta, T.Kaye and J.Vinther, 25th of July 2018.
The rapid fossilisation process destroyed the less stable biochemical compounds like fatty tissue and proteins, but preserved skeletal structures and melanin which colours the skin. This is exactly what happens with naturally formed fossils.
This research was not widely publicized in the media because it proves that millions of years were never needed to produce naturally occurring fossils, as scientists who believe in evolution insist must have been the case. The Bible reports that when the worldwide flood occurred in the days of Noah the 'windows of heaven' opened while the surface of the earth exploded with water which was almost certainly super-heated from volcanic magma. This process continued for about six weeks, until 'all the high mountains under the whole heaven were covered' with water (Genesis 7:19). The resulting layers of hot sediment would have buried the flora and fauna at a great depth and therefore pressure, as the University of Bristol experiments required. Psalm 104.8 explains that the waters thebn drained away as the current ocean basins sank and the current much higher mountain ranges rose up, exposing the sedimental layers of rock in which fossils are now found.