Fossils - Science Olympiad Latest Update

Fossils - Science Olympiad Latest Update sandstone Foraminifera (Forams) porifera siltstone Permineralization When the pores of the plant materials, bones and shells are impregnated by mineral matter from the ground, lakes or ocean Petrification/silicification When the organic matter is completely replaced by minerals and the fossil is turned into stone Mineral replacement Fossils that preserve the structure of the original organically produced matter without actually preserving any of the original matter Cast/mold When the organism is impressed onto rocks Imprints Very shallow external moldsleft by animal or plant tissue Remains Typically your average fossils Chert Coquina Diatomite Dolomite Chalk (limestone) Fossiliferous Limestone Mudstone Shale Petrified Wood