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AllosaurusAllosaurusWeight 2,000 kilograms

Size 12m long and 5m high

Habitat North AmericaPlains

Diet CarnivorousAte Diplodocus, Stegosaurus and more.

Facts

• Two sturdy legs and a powerful tail.• Strong s-shaped neck.• Short but powerful arms.• Curved teeth (5-10cm) facing backwards to stop prey escaping.• Allosaurus means ‘different lizard’.

BrachiosaurusBrachiosaurusWeight 30,000 - 80,000 kilograms

Size 30m long and 13m high

Habitat Europe, North Africa, North AmericaWoodlands

Diet HerbivorousAte leaves and fruit on tall tree-like plants.

Facts

• One of the biggest land animals ever.• Front legs were bigger than the hind legs, so its back sloped up towards the head.• Upper arm bone was over 2 metres long!• Lived about 100 years on average.• Brachiosaurus means ‘arm lizard’.

AnkylosaurusAnkylosaurusWeight 4,000 - 7,000 kilograms

Size 7m long and 2.5m high

Habitat North AmericaWoodlands

Diet HerbivorousGrazed on low-lying plants.

Facts

• The skull was one metre long, but was thick with little room for a brain.• Triangular horns in the corners of its head.• One of the largest armoured dinosaurs.• Muscular tail could swing from side to side.• Ankylosaurus means ‘stiff lizard’.

GiganotosaurusGiganotosaurusWeight 8,000 kilograms

Size 12.m long and 5m high

Habitat South AmericaSwamps

Diet CarnivorousAte other animals.

Facts

• Bigger and faster than a Tyrannosaurus Rex but lived 30 million years before.• Three fingers on its hands.• Small brain, shaped like a banana.• Giganotosaurus means ‘giant southern lizard’.

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HadrosaurusHadrosaurusWeight 3,000 kilograms

Size 9m long and 5m high

Habitat South AmericaSwamps

Diet HerbivorousAte plants.

Facts

• Nostrils ran up inside the crest on its head, causing it to make hooting / honking sounds.• Arms could be raised from the ground to run or put on the ground to walk.• Some had 2,000 teeth!• Hadrosaurus means ‘big lizard’.

PlesiosaurPlesiosaurWeight 500 kilograms

Size From 2.5m to 14m long

Habitat Oceans around the world

Diet CarnivorousAte fish and other swimming animals.

Facts

• They were reptiles, not dinosaurs.• Couldn’t breathe underwater so had to come to the surface for air.• Scientists thought they filled their stomachs with stones to weigh them down.• Plesiosaur means ‘near lizard’.

IguanadonIguanadonWeight 4,000 - 5,000 kilograms

Size 10m long and 4m high

Habitat North America, Asia, EuropeWoodlands

Diet HerbivorousAte plants.

Facts

• Had a sharp thumb spike to protect itself.• Probably moved on four legs but could also run on two.• Bones from four Iguanadon herds were first discovered in a coal mine in 1878.• Iguanadon means ‘iguana tooth’.

PterosaurPterosaurWeight Up to 150 kilograms

Size Wingspan from 5cm to 12m

Habitat Europe and South AfricaSwamps

Diet CarnivorousAte fish, insects and scavenged dead animals

Facts

• They were flying reptiles, not dinosaurs.• They had hollow bones filled with air to make them light and aid flight.• Their wing membranes were made up of several layers of tough leathery skin.• Pterosaur means ‘winged lizard’.

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SpinosaurusSpinosaurusWeight 4,000 kilograms

Size 18m long and 5m high

Habitat North AfricaSwamps

Diet CarnivorousAte fish and maybe other dinosaurs.

Facts

• The sail may have helped it keep a constant body temperature and attract a mate.• No complete skeleton has ever been found.• Had a long skull, like a crocodile.• Original fossils destroyed in WWII.• Spinosaurus means ‘thorn lizard’.

TriceratopsTriceratopsWeight 5,500 kilograms

Size 9m long and 3m high

Habitat North AmericaWoodlands

Diet HerbivorousAte plants.

Facts

• Used its horns to stab at its enemies.• Bony frill helped to protect the neck and also attracted a mate.• The skull was about one third of the Triceratops’ total length.• Triceratops means ‘three horned face’.

StegosaurusStegosaurusWeight 2,000 kilograms

Size 8m long and 4m high

Habitat North AmericaWoodlands

Diet HerbivorousAte plants.

Facts

• Scientists used to think it had two brains.• Could only chew soft plant material.• Poor eyesight but a good sense of smell.• Bony plates may have been for defence or to help keep it cool.• Stegosaurus means ‘roof lizard’.

Tyrannosaurus RexTyrannosaurus RexWeight 7,000 kilograms

Size 12m long and 5m high

Habitat North AmericaForests and swamps

Diet CarnivorousAte other dinosaurs.

Facts

• Had 60 teeth, each one up to 20cm long.• Bite was 3 times more powerful than a lion.• Had a good sense of smell.• They often fought each other, either over food or mates.• Tyrannosaurus Rex means ‘tyrant lizard’.

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VelociraptorVelociraptorWeight 7,000 to 15,000 kilograms

Size 2m long and 1m high

Habitat AsiaWoodlands

Diet CarnivorousAte small mammals and dinosaurs.

Facts

• Had a fine feather-like covering.• Claws on second toe kept off the ground when running to keep them sharp.• Second toe claw could be flicked through 180º and were used to slash prey.• Velociraptor means ‘quick plunderer’.

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