When did it live?
How big was it?
How long was it?
How tall was it?
feeding range from ground to about 4 m
How heavy was it?
as long as 2 cars parked in a row🍌as long as 51 bananas end to end
as heavy as 200 dogs🍉as heavy as 800 watermelons🎒as heavy as 5 whole school classes of kids🐻❄️as heavy as 9 polar bears🏃could run 100 metres in 16 seconds (the fastest human needs 9.6)How big was Hypacrosaurus compared to YOU?
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How fast was it?
Fun facts
Hypacrosaurus had very tall spines on its backbone, making its back look high and ridged.1
Its hollow crest was like Corythosaurus's but smaller and more pointed, and it may have been used to make sounds.1
Scientists found nests, eggs, and babies of Hypacrosaurus, giving us a rare look at how these dinosaurs raised their young.1
Hypacrosaurus could walk on two legs or four, and it could reach plants up to 4 metres (13 feet) high.1
Its teeth were constantly replaced, and it had hundreds of teeth packed together for grinding tough plants.1
The species H. stebingeri is known from the largest collection of baby skeletons of any single hadrosaur species.1
Most asked questions about Hypacrosaurus
?How big was Hypacrosaurus?
About 9.1 metres (30 feet) long and up to 4.0 tonnes (4.4 tons).1
?What did Hypacrosaurus eat?
It was an herbivore that ate plants like pine needles, seeds, fruit, twigs, and magnolia leaves.3
?When did Hypacrosaurus live?
It lived during the Late Cretaceous period, about 75 to 69.5 million years ago.1
?Where was Hypacrosaurus found?
Fossils have been found in Alberta, Canada, and Montana, United States.1
?Did Hypacrosaurus have a crest?
Yes, it had a tall, hollow, rounded crest on its head, which was probably used for making sounds and as a visual signal.1
?How fast could Hypacrosaurus run?
Probably up to about 22 km/h (14 mph), about as fast as a grown-up riding a bike. This is an estimate from its size. It walked and ran on two legs.3
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Myth buster
Myth: Some people think Hypacrosaurus was a sea creature because of its crest.
Truth: It was a land dinosaur that lived near rivers and plains, not in the sea.1
For dino experts
- Scientific name
- Hypacrosaurus
- Named by
- Brown 19134
- Group
- Duck-bills
- Family / clade
- Hadrosauridae4
- Classification
- Ornithischia > Ornithopoda > Iguanodontia > Hadrosauridae4
- Age of the rocks
- 84 to 66 million years (Campanian / Maastrichtian)4
- Rock formations
- Two Medicine, Horseshoe Canyon, Oldman4
- Countries
- Canada, USA4
- Fossil records
- 37 in the Paleobiology Database4
- Also known as
- Cheneosaurus (older names now counted as the same animal)4
- Discovery
- Barnum Brown collected the first fossils in 1910 along the Red Deer River in Alberta, Canada, and named Hypacrosaurus in 1913.1
- Still debated
- Scientists debate whether H. stebingeri is a separate species or just a younger version of H. altispinus.1
Where the facts come from
- Hypacrosaurus (en.wikipedia.org)
- Hypacrosaurus | Natural History Museum (nhm.ac.uk)
- enchantedlearning.com (enchantedlearning.com)
- Hypacrosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.
Every fact on this page has a number that points to its source. If we got something wrong, sorry, we are dino fans, not a science journal. Tell us at [email protected] and we will fix it.
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