From Pathfinder Bestiary 3, which isn't enabled.

Mokele-Mbembe

CREATURE 9

Mokele-mbembes are large, reptilian predators found deep within Golarion's jungles. Mwangi view mokele-mbembes as embodiments of nature's strength and majesty, and they consider the sighting of this rare being a sign of favor from the gods and an omen of powerful natural forces. Mokele-mbembes are solitary and excel at going undetected. Most information about them-including the fact that they're voracious predators-comes from following the signs of their passage.

Perception +15; darkvision, scent (imprecise) 30 feet

Skills Athletics +20, Stealth +19, Survival +17

Str +7, Dex +4, Con +6, Int -4, Wis +2, Cha +0

AC 27; Fort +21, Ref +15, Will +17

HP 172

Speed 30 feet, swim 30 feet

Melee Jaws +22 (reach 15, unarmed), Damage 2d12+10 piercing

Melee Tail +22 (agile, reach 20), Damage 2d6+10 bludgeoning

Melee Foot +22 (reach 10, unarmed), Damage 2d8+10 bludgeoning

Trample

Large or smaller, foot, DC 28 basic Reflex

The monster Strides up to double its Speed and can move through the spaces of creatures of the listed size, Trampling each creature whose space it enters. The monster can attempt to Trample the same creature only once in a single use of Trample. The monster deals the damage of the listed Strike, but trampled creatures can attempt a basic Reflex save at the listed DC (no damage on a critical success, half damage on a success, double damage on a critical failure).

Whip Tail (incapacitation, sonic)

The mokele-mbembe cracks its tail, creating a sonic boom in a 5-foot burst centered on a corner within reach of its tail Strike.

Each creature in the burst's area must attempt a DC 28 Fortitude save. Mokele-mbembes are immune.

Critical Success The creature is unaffected.

Success The creature is Stunned 1.

Failure The creature is Stunned 2.

Critical Failure The creature is Stunned 3.

Pathfinder Bestiary 3OGL