uncommon n large beast 

Perception +19; darkvision, scent (imprecise) 30 feet

Skills Athletics +19

Str +7 Dex +3 Con +6 Int -4 Wis +5 Cha +3

AC  28; Fort +18, Ref +13, Will +17

HP 135

Speed 25 feet

Melee [>] horn +20, Damage 2d12+10 piercing

Melee [>] hoof +18, Damage 2d6+10 bludgeoning

Breath Weapon [>>] (earth, incapacitation, primal, transmutation) The gorgon breathes a 60-foot cone of green gas. Each creature in the area must attempt a DC 25 Fortitude save. The gorgon can't use Breath Weapon again for 1d4 rounds. Critical Success The creature is unaffected.Success The creature's body hardens and stiffens, causing it to become slowed 1 for 1 round.Failure The creature becomes petrified for 1 minute. It can attempt a new save at the end of each of its turns.Critical Failure The creature becomes petrified permanently.

Powerful Charge [>>] The gorgon Strides twice, then makes a horn Strike. If it moved at least 20 feet from its starting position, the Strike's damage is increased to 3d12+12.

Trample [>>>] Medium or smaller, hoof, DC 26

Bestiary 2, page 132.