Dinosaur, Deinonychus
This brightly colored dinosaur exudes a dangerous ferocity. Each foot is armed with a large, sickle-shaped claw.

Deinonychyus (CR 3;XP 800)
N Medium animal
Init +6; Senses low-light vision, scent; Perception +14
Defense
AC 15, touch 12, flat-footed 13
(+2 Dex, +3 natural)
hp 34 (4d8+16)
Fort +8, Ref +6, Will +2
Offense
Speed 60 ft.
Melee 2 talons +5 (1d8+2),bite +5 (1d6+2), foreclaws +0 (1d4+1)
Special Attacks pounce
Statistics
Str 15, Dex 15, Con 19, Int 2, Wis 12, Cha 14
Base Atk +3; CMB +5; CMD 17
Feats Improved Initiative, Run
Skills Acrobatics +10 (+22 jump), Perception +14, Stealth +15; Racial Modifiers +8 Acrobatics, +8 Perception, +8 Stealth
Ecology
Environment forest, jungle
Organization solitary, pair, or pack (3–12)
Treasure none

As swift and agile as it is deadly, the deinonychus is a pack hunter, running with several of its kind to take down prey and rip it apart with their gutting talons.

You can apply the young simple template to create statistics for smaller, more agile velociraptors. Conversely, you can either increase the deinonychus to Large size and its Hit Dice to 8 or simply apply the giant and advanced simple templates to create a formidable megaraptor.