Dino card No. 0247 of 2,027

Barrosasaurus

Say it: bah-ROH-sah-SORE-us

Name means: “Barrosa lizard”1

Ate: PlantsLong-necksLate Cretaceous

Barrosasaurus was a giant, long-necked plant-eater that lived in what is now Argentina. It walked on four thick legs and used its long neck to reach high leaves. Only three back bones have been found, but they tell us this was a huge dinosaur.1 2

Lived

94 to 72 million years ago4

Late Cretaceous

Fossils found in

Sierra Barrosa, Neuquén Province, Argentina1 2

Food

Plants3

Length

up to 18 m1

estimate

Weight

up to 13.5 tonnes1

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 2 elephants

as long as 4 cars parked in a rowas long as 100 bananas end to endas heavy as 9 carsas heavy as 2700 watermelons

How big was Barrosasaurus compared to YOU?

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cool stuff

Fun facts

Barrosasaurus is known from only three back vertebrae, but these bones are very well preserved.1 2

It lived during the Late Cretaceous period, about 93 to 72 million years ago.3

The dinosaur was named after the Sierra Barrosa hill in Argentina where its fossils were found.1

Its species name, casamiquelai, honors the Argentine paleontologist Rodolfo Magín Casamiquela.1

Barrosasaurus belonged to a group of giant sauropods called titanosaurs, which were common in the southern continents.1

Scientists think Barrosasaurus was about 18 meters (60 feet) long and weighed around 13.5 tonnes (14.9 short tons).1

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

?How big was Barrosasaurus?

It was about 18 metres (59 feet) long and weighed around 13.5 tonnes (14.9 tons).1

?What did Barrosasaurus eat?

It was a plant-eater, using its long neck to reach high leaves.1

?When did Barrosasaurus live?

It lived during the Late Cretaceous period, about 93 to 72 million years ago.1

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For dino experts

Scientific name: Barrosasaurus
Named by: Salgado and Coria 20094
Group: Long-necks
Family / clade: Titanosauria4
Classification: Sauropodomorpha > Sauropoda > Titanosauria > Macronaria4
Age of the rocks: 94 to 72 million years (Turonian / Campanian)4
Rock formations: Anacleto, Portezuelo4
Countries: Argentina4
Fossil records: 2 in the Paleobiology Database4
Discovery: Barrosasaurus was named and described by paleontologists Leonardo Salgado and Rodolfo Coria in 2009. The fossils were found in the Anacleto Formation of Neuquén, Argentina.1 2
Still debated: Because only three back bones have been found, scientists are not sure exactly how Barrosasaurus looked or how it is related to other titanosaurs.1 2

Where the facts come from

Barrosasaurus (en.wikipedia.org)
Barrosasaurus casamiquelai gen. et sp. nov., a new titanosaur (Dinosauria, Sauropoda) from the Anacleto Formation (Late Cretaceous: early Campanian) of Sierra Barrosa (Neuquén, Argentina) | Zootaxa (biotaxa.org)
PBDB Taxon (paleobiodb.org)
Barrosasaurus 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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