Dinosaur, Scutellosaurus

Scuttelosaurus is a primitive relative of the Ankylosaur and was more that capable of fending of predators.

Originally Posted by Darknecromancer of the Wizards Community forums.  
On this Thread

A lizard, not 4 feet in length scurries from the bush in a desperate attempt to find more shade. As it passes by you, you notice that its hide is covered in thick knobs that could probably turn your weapons aside with ease. It seems to have some faith that you cannot hurt it, for it only glances at you once before turning its back.

Scutellosaurus
Small animal
Hit Dice	4d8+8 (26 hp)
Initiative	+0
Speed	30 ft. (6 squares)
Armor Class	17 (+1 size, +6 natural), touch 11, flat-footed 17
Base Attack/Grapple	+3/0
Attack	Slam +6 melee (1d6 +1)
Full Attack	Slam +6 melee (1d6 +1)
Space/Reach	5 ft./0 ft.
Special Attacks	–
Special Qualities	Low-Light Vision, Scent
Saves	Fort +6, Ref +4, Will +3
Abilities	Strength 12, Dexterity 10, Constitution 15, Intelligence 2, Wisdom 15, Charisma 10
Skills	Hide +4, Listen +5, Spot +6
Feats	Weapon Focus (Slam)
Environment	Warm plains
Organization	Solitary, Pair, or Family (2-5)
Challenge Rating	2
Treasure	None
Alignment	Always neutral
Advancement	5-8 HD (Small); 9-12 HD (Medium)

Combat

While a Scuttelosaurus is more likely to turn and flee, it can ram its body against its opponent to cause sever internal damage aided by its protective, hard bumps.