C. Transitional Fossil refer to the fossils which trains is the intermediary between it's ancestral group and derived descendant group,as a sign of evolutionary process
A fossil which has traits that are common to its derived descendant group, as well as the ancestral group, is known as the transitional fossil.
Gerobatrachus hottoni is known as the transitional fossil as it has characters that are common to frogs and salamanders and hence, is known to be a transition between the frog and the salamander.
It is to be noted that a transitional fossil is not a connecting link between the ancestor and the descendant.
