The tail of this smaller fish can be seen clearly, protruding from the mouth of the larger fish.
Many similar specimens are known from several localities around the world. In some cases, fish have been buried and fossilized so rapidly that even the delicate soft tissues have been preserved. The Santana Form-ation of Brazil contains fish whose gills and muscles are so perfectly preserved that geologists believe they were fossilized within five hours of death!
It takes rapid burial (by a flood) to preserve these specimens. Something that directly defies evolutionists millions of years.