Near the displays of Cretaceous fossils is a display illustrating the types of material that can be fossilized and examples of different types of fossilization. These include carbonization, permineralization, recrystallization, replacement and preservation of unatlered hard parts. Fossils may be found as imprints, casts, or molds. Another type of fossil displayed here is the trace fossil, which is not a record of the animal or plant's actual body, but instead, a fossilized record of tracks, burrows, bore holes or trails.