which fossil is made when a mold fossil is filled in with sediment

Answer 1

A fossil that is formed when a mold fossil is filled in with sediment is called a cast fossil. In the process of fossilization, a mold forms when an organism leaves an impression in sediment, and if that mold gets filled with mineral-rich sediment or other materials, it can harden into a cast that replicates the shape of the original organism. Together, a mold and its corresponding cast represent two different aspects of the same organism's fossilization.