This quadrupedal dinosaur has two rows of dorsal spikes, a spiked tail, and two more spikes projecting from its shoulders.
Kentrosaurus CR 5
Speed 40 ft.
Melee tail +12 (2d6+10/×3)
Space 10 ft.; Reach 10 ft.
Special Attacks impaling strike
Str 25, Dex 14, Con 17, Int 2, Wis 13, Cha 10
Base Atk +5; CMB +13 (+15 overrun); CMD 25 (27 vs. overrun, 29 vs. trip)
Feats Improved Initiative, Improved Overrun, Power Attack, Weapon Focus (tail)
Skills Perception +11
Defensive Spikes (Ex)
At the end of its turn, a kentrosaurus can crouch down and splay its back and shoulder spikes.
It cannot make attacks of opportunity when using its defensive spikes in this way, but until its next turn any creature that attacks the kentrosaurus with light or one-handed melee weapons, natural weapons, or unarmed strikes takes 1d6 points of piercing damage unless it succeeds at a DC 15 Reflex saving throw. The save DC is Dexterity-based.
Impaling Strike (Ex)
A kentrosaurus’s tail is a primary attack that deals piercing damage and has a ×3 critical damage multiplier.
Environment warm plains
Organization solitary, pair, or herd (3–12)
The kentrosaurus is a smaller relative of the stegosaurus, but features large bony spikes on its shoulders. A typical kentrosaurus measures 15 feet long and weighs 2,000 pounds.
Pathfinder Roleplaying Game Bestiary 6 © 2017, Paizo Inc.; Authors: Robert Brookes, Benjamin Bruck, John Compton, Paris Crenshaw, Adam Daigle, Crystal Frasier, James Jacobs, Thurston Hillman, Tim Hitchcock, Brandon Hodge, Jason Keeley, Isabelle Lee, Jason Nelson, Tim Nightengale, F. Wesley Schneider, David Schwartz, Mark Seifter, Todd Stewart, Josh Vogt, and Linda Zayas-Palmer.