Land Before Time Wiki
Land Before Time Wiki

A pack of Pachycephalosaurus ("Boneheads" or "crown-heads") appear in the original The Land Before Time movie as minor antagonists.



The members of the pack are primarily brown in color, though one individual is black. In poor lighting, they are a cold grey. Two spikes jut from behind their nostrils, and their craniums are surrounded by an uneasy circle of knobs.


The pack only appears briefly in The Land Before Time, to terrorize the protagonistic character Cera. They are highly aggressive towards the young Triceratops, and her death is only avoided once Cera's friends (disguised as a tar monster) come into the caves. They flee, and do not return for the rest of the film.


  • It is unknown as to why the boneheads in the pack attack Cera. Some have justified it through the fact the pack is simply territorial, while others have suggested that their attack was provoked by hunger.



  1. The script refers to them as "brothers" and uses a masculine pronoun for at least one of them:SCRIPT Land Before Time, The (1988)-Page 58.jpg