From Pathfinder Society Scenario #6-19: What Walks Again, which isn't enabled.

Sarkorian Red Bison

CREATURE 8

UNCOMMON LARGE ANIMAL

Perception +16

Skills Athletics +18

Str +5, Dex +2, Con +5, Int -5, Wis +0, Cha -2

AC 24; Fort +16, Ref +12, Will +12

HP 135

Speed 25 feet

Melee Horn +16 (unarmed), Damage 2d8+9 piercing

Melee Hoof +16, Damage 2d6+9 bludgeoning

Thundering Hooves

A Sarkorian red bison's charge shakes the earth. The bison Strides twice and can move through the spaces of creatures at least one size smaller. Each creature whose square the bison enters must takes 2d6+9 bludgeoning damage (DC 24 basic Reflex save). A creature that critically fails this save takes double damage and is knocked Prone.

Pathfinder Society Scenario #6-19: What Walks AgainORC