You are right - this is not the same skull as the beast's. It belongs to a tiger, (Panthera tigris). Tigers are found in India, Siberia, China and South East Asia.

Tigers are massive animals with large skulls and measuring up to three metres from head to tail-tip. If you go back and use the scale bars to measure both skulls you will see that the tiger's skull is twice as broad as the beast's. Note the upturn at the back of the skull.

Look at the next cat, and pay particular attention to the width of its skull.