A cast fossil is one kind of petrified fossil. True Or False
History · Middle School · Mon Jan 18 2021
Answered on
False.
A cast fossil is not a type of petrified fossil. Petrified fossils, also known as petrified wood or permineralized fossils, occur when organic material is replaced by minerals, often resulting in a stony or mineralized replica of the original organism.
On the other hand, a cast fossil is a type of fossil formed when a mold, created by the impression of an organism in sediment, is filled with minerals or sediments, forming a cast of the original organism. The cast is a three-dimensional representation of the external surface of the organism.
In summary, while both cast fossils and petrified fossils are types of fossils, they involve different processes and preservation methods.