Question

At prehistoric clamshell is buried bye sediment on the seafloor overtime the sediment turns to rock and the clamshell dissolves away this leaves behind a cavity in the rock that is shaped like the clamshell what kind of fossil is the clamshell shaped cat cavity

Answer 1

Answer:

Mold fossil.

Explanation:

The clamshell shaped  cavity is a mold fossil owing to the fact that the clamshell died, its body deteriorated but while it is deteriorating it is being covered by sediment. As a result when the clamshell completely disappears it will leave an impression on the sediment, in other words, it is a mold of the prehistoric clamshell.