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Dubreuillosaurus

Say it: doo-bray-oh-SORE-us

Name means: “Dubreuill's lizard, named after the Dubreuil family who discovered it”1

Ate: MeatMeat-eating dinosMiddle Jurassic

Dubreuillosaurus was a meat-eating dinosaur that lived in what is now France, about 168 to 166 million years ago. It had a long skull and sharp teeth, and might have hunted fish in coastal swamps. Scientists think it could grow up to 9 metres long, but the only skeleton found is from a teenager!1 2

Lived

168 to 165 million years ago2

Middle Jurassic

Fossils found in

Conteville, Normandy, France1 2

Food

Meat1 2

Length

5 to 9 m1

the 5 m estimate is based on a subadult; adult may have reached 9 m

Weight

250 kg1

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

How long was it?

How heavy was it?

as heavy as 8 big dogs

as long as 2 cars parked in a rowas long as 50 bananas end to endas heavy as 50 watermelons

How big was Dubreuillosaurus compared to YOU?

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cool stuff

Fun facts

The first bones were found in 1994 by the mayor of Conteville, André Dubreuil, while he was fixing up an old quarry.1

Its skull is one of the most complete known for a megalosaurid dinosaur, with many bones preserved.1

Dubreuillosaurus lived on an island, but it did not become a dwarf dinosaur because of it, unlike some other island dinosaurs.1

The full skeleton was rebuilt from about 2000 bone fragments, each only 1 to 10 centimetres long.1

Its name was changed in 2005 when scientists realized it was not the same kind of dinosaur as Poekilopleuron.1

AI-made picture of Dubreuillosaurus — An AI-made picture of how Dubreuillosaurus might have looked, made by a computer from what scientists know. It is a guess: the real animal may have looked different, and nobody knows its true colours.

you asked

Most asked questions about Dubreuillosaurus

?How big was Dubreuillosaurus?

The only skeleton found is from a teenager, about 5 metres (16 ft) long and 250 kilograms (550 lb). Scientists think adults could grow up to 9 metres (30 ft) long.1

?What did Dubreuillosaurus eat?

It was a meat-eater. It might have hunted fish in coastal swamps, because its fossils were found in mangrove swamp rocks.1

?Did Dubreuillosaurus have feathers?

The sources do not say whether Dubreuillosaurus had feathers. No fossils of feathers have been found with it.1

?When did Dubreuillosaurus live?

It lived during the Middle Jurassic Period, about 168 to 166 million years ago.1

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For dino experts

Scientific name: Dubreuillosaurus
Named by: Allain 20052
Group: Meat-eating dinos
Family / clade: Megalosauridae2
Classification: Theropoda2
Age of the rocks: 168 to 165 million years (Bathonian)2
Rock formations: Calcaires de Caen2
Countries: France2
Fossil records: 1 in the Paleobiology Database2
Discovery: André Dubreuil found the first fossils in 1994 in Normandy, France. Paleontologist Ronan Allain studied them and named the dinosaur Dubreuillosaurus in 2005.1
Still debated: Scientists are not sure how big an adult Dubreuillosaurus really was, since the only known skeleton is from a subadult.1

Where the facts come from

Dubreuillosaurus (en.wikipedia.org)
Dubreuillosaurus 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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