Who would win — Pachycephalosaurus vs Stegosaurus?
Stegosaurus would beat Pachycephalosaurus. Pachycephalosaurus charged forward, ready to deliver a mighty headbutt!

Pachycephalosaurus
dinosaurs
"Dome-head ram."
Power
70
Speed
68
Smarts
55
Skull Headbu
82

Stegosaurus
dinosaurs
"Spike-tail sweeper."
Power
85
Speed
30
Smarts
40
Thagomizer T
88
Battle breakdown
Pachycephalosaurus charged forward, ready to deliver a mighty headbutt! But Stegosaurus wasn't phased, swinging its spiked tail with incredible force. With a thunderous sweep, Stegosaurus sent the dome-headed dino reeling, claiming victory with a powerful, spiky finale!
How they stack up — facts, stats & context
Both Pachycephalosaurus and Stegosaurus are dinosaurs, making this a head-to-head within the same class.
Stat advantages
- Speed: Pachycephalosaurus leads (68 vs 30) — a 38-point gap.
- Power: Stegosaurus leads (70 vs 85) — a 15-point gap.
- Smarts: Pachycephalosaurus leads (55 vs 40) — a 15-point gap.
- Skull Headbutt: Stegosaurus leads (82 vs 88) — a 6-point gap.
About Pachycephalosaurus
- Some scientists believe that a similar dinosaur called Stygimoloch might actually be a younger version of the Pachycephalosaurus.
- The only official species of this dinosaur is called Pachycephalosaurus wyomingensis.
About Stegosaurus
- The Stegosaurus lived at the same time as other famous dinosaurs like the long-necked Apatosaurus and Diplodocus.
- Stegosaurus was a plant-eating dinosaur with four legs that lived a long time ago. It is famous for having large, kite-shaped plates on its back and sharp spikes on its tail.
Related matchups
Slug: pachycephalosaurus-vs-stegosaurus