Dino card No. 0812 of 2,027

Histriasaurus

Say it: HIS-tree-ah-SAWR-us

Name means: “Istria lizard”1

Ate: PlantsLong-necksEarly Cretaceous

Histriasaurus was a long-necked plant-eater that lived about 135 to 125 million years ago. It is one of the oldest known members of its family, the rebbachisaurids. Its fossils were found on the seafloor near the coast of Croatia.1 3

Lived

133 to 121 million years ago3

Early Cretaceous

Fossils found in

Istrian peninsula, Croatia1 3

Food

Plants3

Length

11.5 m2

largest known specimen

Weight

3.3 tonnes2

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 2 cars

as long as 2.5 cars parked in a rowas long as 64 bananas end to endas heavy as 110 big dogsas heavy as 660 watermelons

How big was Histriasaurus compared to YOU?

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cool stuff

Fun facts

Histriasaurus is named after Istria, the region in Croatia where its bones were discovered.1

Its fossils were found in limestone that was once a lake, now exposed on the seafloor.1

Histriasaurus is one of the oldest known rebbachisaurids, a group of long-necked dinosaurs that lived mainly in the Cretaceous.1

The only known specimen is a single neck vertebra, which scientists used to classify it as a primitive relative of Rebbachisaurus.1

Histriasaurus lived alongside other dinosaurs, including a camarasaurid and a titanosauriform, as well as a small shelled creature called Campanellula capuensis.1

Some scientists think Histriasaurus might be a dubious name, but most recent studies agree it is a valid genus.1

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

?How big was Histriasaurus?

Nobody knows for sure because only a single neck vertebra has been found, so its full size cannot be estimated.1

?What did Histriasaurus eat?

It was a plant-eater, like all sauropods. It ate plants from the lakeside environment where it lived.1

?When did Histriasaurus live?

It lived during the Early Cretaceous period, about 135 to 125 million years ago.1

?Where was Histriasaurus found?

Its fossils were found on the seafloor off the coast of Bale, on the Istrian peninsula in Croatia.1

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For dino experts

Scientific name: Histriasaurus
Named by: Dalla Vecchia 19983
Group: Long-necks
Family / clade: Rebbachisauridae3
Classification: Sauropodomorpha > Sauropoda > Diplodocoidea3
Age of the rocks: 133 to 121 million years (Hauterivian / Barremian)3
Countries: Croatia3
Fossil records: 1 in the Paleobiology Database3
Discovery: The fossils were found by Dario Boscarolli in the 1980s on the seafloor off the coast of Bale, Croatia. The dinosaur was named Histriasaurus boscarollii by Fabio Marco Dalla Vecchia in 1998.1
Still debated: Scientists are not sure if Histriasaurus is a rebbachisaurid or a more primitive sauropod, because only one neck vertebra has been found.1

Where the facts come from

Histriasaurus (en.wikipedia.org)
Histriasaurus boscarollii | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
Histriasaurus 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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