What Is a Cast Fossil?

Answer

A cast fossil preserves the impression of the hard parts of an organism, such as a shell or exoskeleton. Cast fossils are most commonly found in sandstones and other porous rocks. Since hard parts do not decay as quickly as softer tissues, they are most likely to leave cast fossils.

As the softer parts of an organism decay and dissolve, a detailed impression of the organism is left behind in rock. Cast fossils result when minerals are deposited in these molds. Artificial cast fossils can also be created by using plaster of Paris or latex to fill an existing mold.

Q&A Related to "What Is a Cast Fossil?"
A cast fossil is a type of fossil indicator. It is a replica of the original organism, providing an impression of the organism's original morphology, without containing any, or at
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a cast fossil is an imprint in rock of a shell, bone, etc.
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A fossil is something found in the crust of the Earth. It is a piece of or a whole organism that is preserved in rock. Fossils are helpful for judging when the rocks they are contained
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A cast fossil is a fossil that retains the shape of the original object. A mold
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