Exploring Fossils: Molds, Casts, and Imprints

The video tutorial explains the formation and types of fossils, focusing on imprints, molds, and casts. It begins with an introduction to fossil imprints, using dinosaur tracks as an example of how these are formed in wet mud that hardens over time. The tutorial then delves into the formation of mold and cast fossils, describing how a mold is created when an organism decays and leaves a hollow shape in sediment. This is followed by an explanation of how a cast is formed when minerals fill the mold, creating a replica of the original organism. Examples, such as a fossilized fish and a brachiopod, illustrate these concepts.

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