Gobihadros

Say it: GO-bee-HAD-ros

Name means: “hadrosauroid from the Gobi Desert of Mongolia”1

Ate: PlantsBeaked plant-eatersLate Cretaceous

Gobihadros was a small, plant-eating dinosaur that lived in what is now Mongolia. It had a beak like a duck and could walk on two legs or all fours. Scientists found a nearly complete skeleton, so we know a lot about its body.1

Lived

100 to 84 million years ago4

Late Cretaceous

Fossils found in

Gobi Desert, Mongolia (Bayshin Tsav, Khongil Tsav, Bayn Shire, and Khoorai Tsav)1

Food

Plants4

When did it live?

Triassic

Jurassic

Cretaceous

252 million years ago20114566, the asteroid

cool stuff

Fun facts

Gobihadros is the first non-hadrosaurid hadrosauroid from the Late Cretaceous of central Asia known from a complete, articulated skull and skeleton.1

It had up to three functional teeth in each tooth position in its lower jaw, which is unusual for a hadrosauroid.1

The upper jaw of Gobihadros had a 'double-layer' oral margin, a feature also seen in later hadrosaurids.1

Its ilium (hip bone) had a sigmoidal (S-shaped) upper outline and a fan-shaped rear process, which helped scientists identify it as a new species.1

Gobihadros had a spike-like thumb claw on its hand, which it may have used for defense or digging.1

The fossils were collected by a joint Mongolian-Japanese expedition between 1993 and 2004.1

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

?How big was Gobihadros?

About 7.5 metres (25 feet) long for the largest fully grown individuals, though some specimens were smaller, like 3 metres (9.8 feet) for an immature one.3

?What did Gobihadros eat?

It was a plant-eater. It had a beak like a duck and up to three functional teeth in each spot in its lower jaw to chew plants.3

?Did Gobihadros have a thumb spike?

Yes, it had a conical, spike-like claw on its first finger, which it may have used for defense or digging.3

?When did Gobihadros live?

It lived during the Late Cretaceous period, about 100 to 84 million years ago (Cenomanian to Santonian stages).3

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For dino experts

Scientific name: Gobihadros
Named by: Tsogtbaatar et al. 20194
Group: Beaked plant-eaters
Family / clade: Hadrosauroidea4
Classification: Ornithischia > Ornithopoda > Iguanodontia4
Age of the rocks: 100 to 84 million years (Cenomanian / Santonian)4
Rock formations: Baynshire4
Countries: Mongolia4
Fossil records: 6 in the Paleobiology Database4
Discovery: Gobihadros was named in 2019 by Khishigjav Tsogtbaatar, David B. Weishampel, David C. Evans, and Mahito Watabe. The type specimen, a nearly complete skeleton, was found at Bayshin Tsav in the Gobi Desert, Mongolia.4 1
Still debated: Scientists are not sure whether Gobihadros was a direct ancestor of later hadrosaurids or just a close cousin.1

Where the facts come from

journals.plos.org (journals.plos.org)
PBDB Taxon (paleobiodb.org)
Gobihadros (en.wikipedia.org)
Gobihadros 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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