Haplocanthosaurus is known from partial skeletons that lack skulls, so the shape of the head in reconstructions is based on similar dinosaurs.
Dinosaurs
How dinosaurs evolved into birds
The humble pigeon is a distant relative of the mighty T. rex.
Dinosaurs
Dinosaur family tree gets major makeover
Dinosaurs have a new family tree. Find out how it has changed and what the new tree reveals about dinosaurs' origins and evolution.
Dinosaurs
What's wrong with these dinosaurs?
These popular dinosaur reconstructions from the 1960s are no longer scientifically accurate. Can you spot the errors?
Dinosaurs
What is a coprolite?
Fossil poo may not be a glamorous fossil find, but it can reveal a lot about prehistoric animals.
Step back in time
Find out more about dinosaurs' lives and the world they lived in.
Fun and games
Learn more about dinosaurs through toys, board games and activity kits, available from our online shop.
Dinosaurs Gallery
Roarrr. Come face-to-face with world-famous dinosaurs.