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Hexinlusaurus

Say it: HEK-sin-loo-SORE-us
Name means: “He Xin-Lu's lizard”1
Ate: PlantsBeaked plant-eatersMiddle Jurassic to Late Jurassic

Hexinlusaurus was a small, speedy plant-eater that lived in what is now China during the Middle Jurassic. It ran on two legs and used its beak to nibble on plants.1

Lived
171 to 155 million years ago5
Middle Jurassic to Late Jurassic
Fossils found in
Sichuan, China1
Food
Plants2
Length
1 to 2 m2
estimate based on small ornithischian size
Weight
20 kg to 30 kg34
estimate
Height
0.5 m3
hip height estimate
Top speed
about 41 km/h (25 mph)
Running, estimate

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

How long was it?

Hexinlusaurus about 2 m longA dog about 1 mA bicycle about 1.8 mA car about 4.5 m

How tall was it?

A house catabout 0.3 mHexinlusaurusabout 0.5 m tallA dogabout 0.6 m🚪A doorabout 2 m

hip height estimate

How heavy was it?

as heavy as 8 house cats
as long as 4 house cats nose to tailas long as 11 bananas end to endas heavy as 6 watermelons

How big was Hexinlusaurus compared to YOU?

Just maths in your browser. Nothing is saved or sent anywhere.

How fast was it?

cool stuff

Fun facts

1

Hexinlusaurus was first thought to be a species of Yandusaurus, but scientists later gave it its own name in 2005.1

2

Its name honors Professor He Xin-Lu, who first described the fossils.1

3

The only known fossils include a nearly complete skull and some bones from the rest of the body.1

4

It lived during the Middle Jurassic, about 170 to 155 million years ago.2

5

Hexinlusaurus was a small, fast-running dinosaur that probably escaped predators by sprinting away.1

6

It had a special hollow on the side of a skull bone called the postorbital, which is unique to this dinosaur.1

AI-madeAI-made picture of Hexinlusaurus
An AI-made picture of how Hexinlusaurus 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 Hexinlusaurus

?How big was Hexinlusaurus?

It was a small dinosaur, but the sources do not give a specific length or weight. It is described as a small, fleet-footed herbivore.1

?What did Hexinlusaurus eat?

Hexinlusaurus was a herbivore. It used its beak to nibble on plants.1

?When did Hexinlusaurus live?

It lived during the Middle to Late Jurassic, about 168 to 161 million years ago.1

?Where was Hexinlusaurus found?

Its fossils were found at the Dashanpu dinosaur quarries in Sichuan, China.15

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For dino experts

Scientific name
Hexinlusaurus
Named by
Barrett et al. 20055
Group
Beaked plant-eaters
Family / clade
Neornithischia5
Classification
Ornithischia5
Age of the rocks
171 to 155 million years (Bajocian / Oxfordian)5
Rock formations
Shaximiao5
Countries
China5
Fossil records
1 in the Paleobiology Database5
Discovery
The fossils were found in the Lower Shaximiao Formation in Dashanpu, China. They were first named Yandusaurus multidens in 1983, but in 2005 scientists Barrett, Butler, and Knoll gave it the new name Hexinlusaurus.1
Still debated
Scientists are not sure exactly how Hexinlusaurus is related to other early ornithischian dinosaurs, as different studies place it in different groups.2

Where the facts come from

  1. Hexinlusaurus (en.wikipedia.org)
  2. PBDB Taxon (paleobiodb.org)
  3. HEXINLUSAURUS - DinoChecker dinosaur archive (dinochecker.com)
  4. Hexinlusaurus multidens | Dinosaur Database by DinoAnimals.com (dinoanimals.com)
  5. Hexinlusaurus 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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More from the same group: Beaked plant-eaters

Also from the same time: Middle Jurassic

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