The fossils in this study unit help to illustrate the major processes by which a life form is preserved as a fossil. Some of the specimens will illustrate processes such as petrifaction, pyritization, molds and casts and distillation. 15 natural specimens, all in a compartment container. Grades 7-12. Shipped directly from the manufacturer. Not available with rush shipping. Delivery time estimated at 10-14 days or less. Gift wrap not available. Information on how to place your order by fax or by telephone. Product Number M3010S