The+Pachycephalosaurs

=__Pachycephalosaurs__=
 * ==is a clade of Ornithischian dinosaurs.==
 * ===Greek for thick headed lizards===
 * ===lived in the cretaceous time===
 * ===lived in north America and Asia===
 * ===3 - 26 ft in length===
 * ===ate plants===
 * ===thick-boned dome skull===

= =

= = =__Stygimoloch__=

-It was discoverd in 1982
-Didn't butt heads with others or it would break its neck

-The horns can grow up to 4 inches long
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=__Wannanosaurs__=