Dino card No. 0143 of 2,027

Aragosaurus

Say it: ah-RAH-go-SORE-us

Name means: “Aragon lizard”1 2

Ate: PlantsLong-necksLate Jurassic to Early Cretaceous

Aragosaurus was a huge, long-necked plant-eater that stomped through what is now Spain about 145 million years ago. It had a small head, a bulky body, and a long, muscular tail.1

Lived

155 to 143 million years ago4

Late Jurassic to Early Cretaceous

Fossils found in

Galve, province of Teruel, Aragon, Spain1 4

Food

Plants1

Length

18 m1 2

Weight

25 tonnes1

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

How big was it?

as long as 4 cars parked in a rowas long as 100 bananas end to endas heavy as 17 carsas heavy as 4 elephantsas heavy as 5000 watermelons

How big was Aragosaurus compared to YOU?

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cool stuff

Fun facts

Aragosaurus is known from a partial skeleton, including parts of the backbone, hips, and legs.1

It lived during the Early Cretaceous period, about 145 to 140 million years ago.1

Aragosaurus was about 18 metres (59 feet) long, as long as two school buses parked end to end.1 2

It weighed about 25 tonnes, as much as five African elephants.1

Like other sauropods, Aragosaurus walked on all four legs and had a long neck to reach high tree leaves.1

Its fossils were found in the Villar del Arzobispo Formation in Spain.1 4

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

?How big was Aragosaurus?

Aragosaurus was about 18 metres (59 feet) long and weighed about 25 tonnes. That is as long as two school buses and as heavy as four African elephants.1 2

?What did Aragosaurus eat?

Aragosaurus was a plant-eater, or herbivore. Its large, wide teeth were good for slicing leaves and branches from tall conifer trees.1 2

?When did Aragosaurus live?

Aragosaurus lived during the Early Cretaceous period, about 145 to 140 million years ago. Some scientists think it may have lived a bit later, around 132 to 121 million years ago.1 2 3

?Where was Aragosaurus found?

Its fossils were found in Spain, near the town of Galve in the province of Teruel. They came from the Villar del Arzobispo Formation.1 2

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For dino experts

Scientific name: Aragosaurus
Named by: Sanz et al. 19874
Group: Long-necks
Family / clade: Macronaria4
Classification: Sauropodomorpha > Sauropoda > Macronaria4
Age of the rocks: 155 to 143 million years (Kimmeridgian / Tithonian)4
Rock formations: Villar del Arzobispo4
Countries: Spain4
Fossil records: 1 in the Paleobiology Database4
Discovery: Aragosaurus was named in 1987 by Spanish paleontologists Jose Luis Sanz, Angela Buscalioni, Maria Lourdes Casanovas, and Jose Vicente Santafe, based on a partial skeleton found in Galve, Spain.1 2
Still debated: Scientists are not sure exactly how Aragosaurus is related to other sauropods. Some think it is a close relative of Camarasaurus, but others place it in a different group.1

Where the facts come from

Aragosaurus (en.wikipedia.org)
Aragosaurus (nhm.ac.uk)
New information about the stratigraphic position and age of the sauropodAragosaurus ischiaticusfrom the Early Cretaceous of the Iberian Peninsula. (gredos.usal.es)
Aragosaurus in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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