What does the name "Stegosaurus" mean?

• Spiked lizard

• Roofed lizard

• Armored giant

• Swift reptile

Where have Stegosaurus fossils been found?

• Eastern USA, northern Europe, western India, Japan, and northern Africa

• Western USA, western Europe, southern India, China, and southern Africa

• Central USA, eastern Europe, northern India, China, and central Africa

• Southern USA, central Europe, western India, Mongolia, and eastern Africa

How many plates did Stegosaurus have on its back?

• 15 plates

• 17 plates

• 19 plates

• 21 plates

What was the approximate length of a Stegosaurus?

• 5–7 m (16–23 ft)

• 7–9 m (23–30 ft)

• 9–12 m (30–40 ft)

• 12–15 m (40–50 ft)

What was the function of the spikes at the end of Stegosaurus's tail?

• For display to attract mates

• To aid in balance while walking

• As a weapon to defend against predators

• To dig for food

How much could a Stegosaurus weigh?

• Up to 1,000 kg (1 ton)

• Up to 2,000 kg (2 tons)

• Up to 3,000 kg (3 tons)

• Up to 4,000 kg (4 tons)

What was discovered in 1992 about Stegosaurus that added to its defensive features?

• It had a second brain in its tail

• It had chainmail-like armoured plates protecting its throat and hip areas

• It had wings for short-distance flight

• It had venomous spikes on its tail

What was the initial assumption about the pointy back plates of Stegosaurus?

• They were used for flying

• They were purely decorative

• They were used for defense against predators

• They were used for regulating body temperature

What is the most recent theory about the function of Stegosaurus's plates?

• They were used to attract mates

• They were used to regulate body temperature

• They were used to recognize other members of their species

• They were used to store water

How did Stegosaurus likely live?

• In solitary

• In small family groups or herds

• In large herds like buffalo

• In pairs for life