WHO WILL WIN?
Allosaurus
RAAAH
Stegosaurus
WHAP-SPIKE
THE SETUP

Allosaurus vs Stegosaurus

Allosaurus
Allosaurus
Stegosaurus
Stegosaurus

Pretend a allosaurus and a stegosaurus meet in forest. Look at the facts. Then you pick.

Would they meet?

Yes. They could meet in the real wild. This page is still a what-if.

This is pretend and based on facts. Real animals usually hide or leave.

Read the facts. Make your card. The page waits to pick.

Corner A

Allosaurus

Allosaurus fragilis · The Jurassic's hatchet-jaw hunter.

Allosaurus
Home
Late Jurassic plains of western North America · Lived in North America long ago
Food
Meat
Group
Lives alone
Size
Allosaurus is huge.

Hatchet-jaw hunter of the Jurassic.

Forward-set hunter eyes for its time.

Top predator of its chapter.

  • Allosaurus is huge and not very fast.
  • Sauropods, stegosaurs, and whatever the Jurassic buffet listed.
  • Morrison Formation, Late Jurassic.

Family: Other allosauroids.

Corner B

Stegosaurus

Stegosaurus stenops · Roof-plates up top, a tagged tail in back.

Stegosaurus
Home
Late Jurassic fern prairies of western North America · Lived in North America long ago
Food
Plants
Group
Lives in a herd
Size
Stegosaurus is huge.

Browser.

A tiny brain, a low head, and a tail that did not wait for a committee.

Slow salad tank.

  • Stegosaurus is huge and slow.
  • Low plants.
  • Morrison Formation country — Late Jurassic, about 150 million years ago.

Family: Other plated dinosaurs like Kentrosaurus.

TO SCALE!

SIZE & WEIGHT

Stand them next to a grown-up. Who is bigger and heavier?

1.70 m

Grown-up

2.8 m

Allosaurus to scale

Allosaurus

2.8 m

Stegosaurus to scale

Stegosaurus

Height to scale. A grown-up is 1.7 m.

Allosaurus1,700 kg

About the weight of a small car, hip-tall as a doorway, shorter than T. rex and quicker on the turn.

Stegosaurus3,500 kg

About the weight of a pickup truck, with plates that could top a grown-up's head.

Allosaurus

2.8 m · 1,700 kg

Allosaurus is huge. 1,700 kg.

Stegosaurus

2.8 m · 3,500 kg

Stegosaurus is huge. 3,500 kg.

Kilograms are honest. A small animal can still have a strong tool.

Who would you pick for size?

TOOLKIT!

TOOLS

Teeth, claws, horns, venom, kick — what tools do they have?

  • Weapon: Hatchet bite plus hand claws
  • Armor: Crested skull
  • Senses: Forward-set hunter eyes for its time.

Allosaurus · labeled field diagram

  • Weapon: Thagomizer tail spikes
  • Armor: Kite-plate rooftop
  • Senses: A tiny brain, a low head, and a tail that did not wait for a committee.

Stegosaurus · labeled field diagram

Allosaurus2000 psi bite
Stegosaurus200 psi bite

Allosaurus

Hatchet bite plus hand claws

Tool: hatchet bite plus hand claws. Bite: 2,000 psi.

Stegosaurus

Thagomizer tail spikes

Tool: thagomizer tail spikes. Bite: 200 psi.

A bite number is only one tool. Coils and kicks count too.

Whose tools would you trust?

ZOOM!

SPEED

Who gets there first?

Allosaurus
32 km/h
Stegosaurus
12 km/h
Allosaurus32 km/h
Stegosaurus12 km/h

Allosaurus

32 km/h

Allosaurus can go 32 km/h. That is not very fast.

Stegosaurus

12 km/h

Stegosaurus can go 12 km/h. That is slow.

A fast animal can miss. A slow one only has to connect.

Who takes the speed card?

HOME MAP!

HOME

They meet in forest. Who is built for this place?

N. AmericaS. AmericaEuropeAfricaAsiaAustraliaAntarctica
AllosaurusStegosaurusBoth

Meeting biome: forest. Colored land is fossil range for dinosaurs and living range for zoo animals.

Allosaurus

This is home · Lived in North America long ago

Allosaurus lives in places like forest.

Stegosaurus

This is home · Lived in North America long ago

Stegosaurus lives in places like forest.

Yes. They could meet in the real wild. This page is still a what-if.

Who gets the home point?

MENU!

FOOD

How do they get lunch?

Allosaurus
Meat · Hatchet-jaw hunter of the Jurassic.
Stegosaurus
Plants · Browser.

Allosaurus

Meat · Hatchet-jaw hunter of the Jurassic.

Sauropods, stegosaurs, and whatever the Jurassic buffet listed.

Stegosaurus

Plants · Browser.

Low plants.

A plant eater is not 'safe.' Hippos and elephants still end arguments.

Whose hunting or defending helps more?

MOOD!

MOOD

Alone vs team. This rumble is one vs one.

Allosaurus
Lives alone
Stegosaurus
Lives in a herd
Allosaurus8 grit /10
Stegosaurus7 grit /10

Allosaurus

Lives alone

Top predator of its chapter. Grit: 8/10.

Stegosaurus

Lives in a herd

Slow salad tank. Grit: 7/10.

Pack and pride animals lose their backup in a 1-v-1.

Who is better for a solo meeting?

PING!

BRAINS

Who notices first and thinks next?

Allosaurus
4/10
Stegosaurus
2/10
Allosaurus4 brains /10
Stegosaurus2 brains /10

Allosaurus

4/10

Forward-set hunter eyes for its time.

Stegosaurus

2/10

A tiny brain, a low head, and a tail that did not wait for a committee.

In the wild, brains often mean leave before it starts.

Who would you score for noticing?

COUSINS!

FAMILY

Who are they related to?

Allosaurus
Allosaurus fragilis
Stegosaurus
Stegosaurus stenops

Allosaurus

Allosaurus fragilis

Other allosauroids.

Stegosaurus

Stegosaurus stenops

Other plated dinosaurs like Kentrosaurus.

Cousins are clues, not a score.

Not a fight point. Who has the wilder family story?

WILD CARD!

SPECIAL

What special move did they evolve?

Allosaurus
Hatchet-Chop Lunge
Stegosaurus
Plate Parade Whip

Allosaurus

Hatchet-Chop Lunge

Open wide, strike down, pull back.

Stegosaurus

Plate Parade Whip

The brain was famously small.

A secret move here is a real wild tool, not a video-game combo.

Whose special move would change the meeting?

YOUR SCORECARD

Your scorecard

Tap who has each fact. Then tap who you think wins.

  • SIZE & WEIGHT

  • TOOLS

  • SPEED

  • HOME

  • FOOD

  • MOOD

  • BRAINS

  • SPECIAL

Your card: Allosaurus 0 · Stegosaurus 0 · still open 8

Who wins the meeting?

Keep going for the pretend meeting, then the science pick.

SKREEE!

THEY MEET

Allosaurus runs first. Stegosaurus does not race. They wait in forest.

Pretend · fact-based · not a gore-fest

CHOMP!

THE TOOLS SHOW UP

Stegosaurus is heavier. Allosaurus uses hatchet bite plus hand claws. Nobody is keeping a gore score.

Pretend · fact-based · not a gore-fest

SNAP!

SPECIAL MOVES

Allosaurus tries the Hatchet-Chop Lunge. Stegosaurus tries the Plate Parade Whip. Keep your card. The last page is next.

Pretend · fact-based · not a gore-fest

THE SCIENCE PICK

Stegosaurus!

A CLEAR PICK · UNDERDOG

You skipped a final pick. The facts still stamp a champ.

On forest, Stegosaurus wins. Stegosaurus is a lot heavier. Allosaurus would still win some meetings at home.

In the wild, most animals skip a fight. We still judge who the bodies and the place would favor.

Science card: Allosaurus 4 · Stegosaurus 2 · ties 2.

Your card: Allosaurus 0 · Stegosaurus 0.

The last page follows the whole animal — body plus home — not one bar chart.

Send this fight

A friend can read the same facts.

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