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Oblitosaurus

Say it: ob-lee-toh-SORE-us

Name means: “forgotten lizard”1

Ate: PlantsBeaked plant-eatersLate Jurassic to Early Cretaceous

Oblitosaurus was a big, plant-eating dinosaur that lived in what is now Spain during the Late Jurassic. It walked on two legs and used its strong beak to nibble on ferns and other plants.4 2

Lived

152 to 143 million years ago4

Late Jurassic to Early Cretaceous

Fossils found in

Barrihonda-El Humero site, Riodeva, Teruel, Spain2

Food

Plants4

Length

6 to 7 m2

estimate based on femur length

Weight

1 tonnes3

largest known specimen

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 33 big dogs

as long as 7 dogs nose to tailas long as 39 bananas end to endas heavy as 200 watermelons

How big was Oblitosaurus compared to YOU?

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cool stuff

Fun facts

Oblitosaurus is the largest ornithopod dinosaur known from the Late Jurassic of Europe.2

Its fossils were found at the same site as the giant sauropod Turiasaurus riodevensis and a turtle named Riodevemys.2

The name Oblitosaurus means 'forgotten lizard' because its bones were the last to be studied from the fossil site.1

It was named after Luis Buñuel, a famous Spanish film director who was born in the province of Teruel.2

Oblitosaurus had a special thumb claw (ungual pollex) on its hand, which is one of the fossils used to identify it.2

Scientists think Oblitosaurus might have made some of the large ornithopod footprints found in the Late Jurassic rocks of Spain.2

AI-made picture of Oblitosaurus — An AI-made picture of how Oblitosaurus 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 Oblitosaurus

?How big was Oblitosaurus?

About 6 to 7 metres (20 to 23 feet) long. That makes it the largest ornithopod dinosaur known from the Late Jurassic of Europe.1 2

?What did Oblitosaurus eat?

It was a plant-eater. It used its strong beak to nibble on ferns and other plants.1

?When did Oblitosaurus live?

It lived during the Late Jurassic, about 150 to 145 million years ago.1 2

?Where was Oblitosaurus found?

Its fossils were found in the Villar del Arzobispo Formation in Riodeva, Teruel, Spain.1 2

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For dino experts

Scientific name: Oblitosaurus
Named by: Sánchez-Fenollosa et al. 20234
Group: Beaked plant-eaters
Family / clade: Dryomorpha4
Classification: Ornithischia > Ornithopoda > Iguanodontia4
Age of the rocks: 152 to 143 million years (Kimmeridgian / Tithonian)4
Rock formations: Villar del Arzobispo4
Countries: Spain4
Fossil records: 1 in the Paleobiology Database4
Discovery: Oblitosaurus was named in 2023 by Sergio Sánchez-Fenollosa and colleagues. The fossils were collected in 2005 and 2009 from the Barrihonda-El Humero site in Spain.2
Still debated: Scientists are still debating exactly how Oblitosaurus is related to other early ankylopollexian dinosaurs like Draconyx and Camptosaurus.2

Where the facts come from

Oblitosaurus (en.wikipedia.org)
largest ornithopod (Dinosauria: Ornithischia) from the Upper Jurassic of Europe sheds light on the evolutionary history of basal ankylopollexians | Zoological Journal of the Linnean Society | Oxford Academic (academic.oup.com)
Oblitosaurus bunnueli | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
Oblitosaurus 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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