Welcome to the University of Maine School of Nursing! It is both an honor and a privilege to lead a School wholly committed to building a learning community of students and scholars where âeverybody knows your name.â Within the School of Nursing, you will find that that the gifts and talents of our faculty, staff, [â¦]
cast fossil (Noun). A fossil formed when an animal, plant, or other organism dies, its flesh decays and bones deteriorate due to chemical reactions; minerals gradually enter into the cavity, resulting in a cast, also called a mold fossil, which is in the general form of the original organism.
Mold fossils and cast fossils occur when an organism leaves an imprint that is fossilized. Mold fossils are when an imprint is made and that imprint is fossilized, whereas cast fossils are imprints that are filled in and then fossilized. This is a mold fossil of a bivalve, like a clam or oyster, from a dig sight in Ohio