From Pathfinder #181: Zombie Feast, which isn't enabled.

Chattering Jaws

CREATURE -1

Chattering jaws usually serve no purpose other unnerving people by clicking their teeth together. Some chattering jaws only chatter at regular intervals to help tell the time.

Commonly mistaken for undead, animated bones are mindless constructs with no connection to necromancy. The following are examples of typical animated bones.

Perception +3; darkvision

Skills Athletics +6

Str +1, Dex +2, Con +0, Int -5, Wis +0, Cha -5

Incessant Chattering

Jaws always chatter at a predetermined time, such as during specific times of day or in response to a trigger, such as noticing a creature within 30 feet. During these times, the chattering jaws can be automatically heard by all creatures within 60 feet.

AC 13; Fort +3, Ref +6, Will +3

HP 8; Resistances cold 2, electricity 2, fire 2, piercing 2, slashing 2

Gnashing Rage

When chattering jaws are destroyed, all other animated bones within 30 feet that can see or hear the chattering jaws become Quickened 1 for 1 minute. The animated bones can use this extra action to Stride or Strike.

Speed 20 feet

Melee Jaws +8 (unarmed), Damage 1d4+1 piercing

Pathfinder #181: Zombie FeastOGL