Dino card No. 0422 of 2,027

Cienciargentina

Say it: see-en-see-ar-gen-TEE-na

Name means: “science of Argentina”1

Ate: PlantsLong-necksEarly Cretaceous

Cienciargentina was a long-necked plant eater that lived in Argentina about 106 million years ago. It had a small head, a huge body, and a whip-like tail. This dinosaur is one of the last of its family, the rebbachisaurids.4 1

Lived

110 to 106 million years ago4

Early Cretaceous

Fossils found in

Villa El Chocón, Neuquén Province, Argentina4 1

Food

Plants4

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

cool stuff

Fun facts

Cienciargentina is known from three partial skeletons of different sizes, found together.1

Its name honors the science and technology system of Argentina.1

Cienciargentina lived alongside the titanosaur Choconsaurus in the same area.1

It is the fourth rebbachisaurid dinosaur named from the Huincul Formation.1

Cienciargentina had a special hip bone shape: the top of its thigh bone pointed upward, above the greater trochanter.2

Its tail vertebrae had a length-to-height ratio of 5 or more, making the tail very long and slender.2

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

?How big was Cienciargentina?

Scientists do not know its exact size yet, but it was a medium to large sauropod, like other rebbachisaurids. It is known from three partial skeletons of different sizes, so the largest was probably quite big.1 3

?What did Cienciargentina eat?

It was a plant eater. Like other rebbachisaurids, it was a non-selective, ground-level browser that ate low-growing plants.3

?When did Cienciargentina live?

It lived about 106 million years ago, during the Early Cretaceous period (Albian stage).1

?Is Cienciargentina a dinosaur?

Yes, it is a dinosaur. It is a type of sauropod called a rebbachisaurid.1 4

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For dino experts

Scientific name: Cienciargentina
Named by: Simón and Salgado 20254
Group: Long-necks
Family / clade: Rebbachisauridae4
Classification: Sauropodomorpha > Sauropoda > Diplodocoidea4
Age of the rocks: 110 to 106 million years (Albian)4
Rock formations: Huincul4
Countries: Argentina4
Fossil records: 1 in the Paleobiology Database4
Discovery: Cienciargentina was named in 2025 by María Edith Simón and Leonardo Salgado. The fossils were found at the La Antena site in Villa El Chocón, Argentina.4 1
Still debated: Scientists are not sure how big Cienciargentina grew, because only partial skeletons have been found.1

Where the facts come from

Cienciargentina (en.wikipedia.org)
New rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (upper Cenomanian-Turonian) of Villa El Chocón (Neuquén Province, Argentina) (ri.conicet.gov.ar)
New rebbachisaurid (Dinosauria, Sauropoda) from the Huincul Formation (upper Cenomanian-Turonian) of Villa El Chocón (Neuquén Province, Argentina) (sciencedirect.com)
Cienciargentina in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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