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Halszkaraptor

Say it: HALSH-ka-rap-tor
Name means: “Halszka's seizer”1
Ate: MeatRaptorsLate Cretaceous

Halszkaraptor was a small, duck-sized dinosaur that could run on land and maybe swim in water. It had a long swan-like neck and a beak-like snout full of sharp teeth.21

Lived
84 to 72 million years ago4
Late Cretaceous
Fossils found in
Ukhaa Tolgod, Djadokhta Formation, southern Mongolia41
Food
Meat41
Length
0.45 m1
estimated from head to sacrum length (head 7 cm, neck 20 cm, back 13 cm, sacrum 5 cm)

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

Halszkaraptor about 0.45 m longA house cat about 0.5 mA dog about 1 mA bicycle about 1.8 m
as long as 2.5 bananas end to end

How big was Halszkaraptor compared to YOU?

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cool stuff

Fun facts

1

Halszkaraptor had a very long neck for a dinosaur, about 20 cm (7.9 in) long, which is almost half its total body length.1

2

Its front limbs were short and flipper-like, which scientists think it may have used to paddle in water.1

3

The snout had many tiny holes that might have held sensors to detect vibrations in water, like a crocodile.1

4

The only known fossil was smuggled out of Mongolia and later returned after scientists proved it was real using a powerful X-ray scanner.1

5

It lived about 75 million years ago, during the Late Cretaceous period.1

6

Some scientists think Halszkaraptor was an insectivore that hunted small bugs in murky water or at night, because its eyes were large.1

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

?Was Halszkaraptor a dinosaur?

Yes, Halszkaraptor was a small, duck-sized dromaeosaurid dinosaur from the Late Cretaceous.1

?How big was Halszkaraptor?

About the size of a mallard duck. Its head was 7 cm long and its neck was 20 cm long.1

?Could Halszkaraptor swim?

Some scientists think it could swim using flipper-like forelimbs and a long neck, but others disagree because its bones were not dense enough.12

?What did Halszkaraptor eat?

It likely ate small fish or insects. Its sharp, backward-curving teeth and snout sensors helped it catch prey in water.13

?Why did Halszkaraptor have a long neck?

Its long, swan-like neck helped it strike at prey in the water, similar to how herons hunt today.13

?When did Halszkaraptor live?

It lived about 75 million years ago, during the Late Cretaceous period.1

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Myth buster

Myth: Halszkaraptor was a fully aquatic dinosaur like a dolphin.

Truth: Scientists debate whether it was semi-aquatic. It had some adaptations for water, like a long neck and flipper-like arms, but also strong legs for running on land. It likely spent time both in water and on land.1

For dino experts

Scientific name
Halszkaraptor
Named by
Cau et al. 20174
Group
Raptors
Family / clade
Dromaeosauridae4
Classification
Theropoda > Dromaeosauridae4
Age of the rocks
84 to 72 million years (Campanian)4
Rock formations
Djadokhta4
Countries
Mongolia4
Fossil records
1 in the Paleobiology Database4
Discovery
The fossil was found by poachers in Mongolia before 2011, then bought by a dealer who showed it to scientists in 2015. It was named Halszkaraptor escuilliei in 2017 by Andrea Cau and colleagues.1
Still debated
Scientists are still debating whether Halszkaraptor was truly semi-aquatic or mainly lived on land and ate insects.1

Where the facts come from

  1. Halszkaraptor (en.wikipedia.org)
  2. Synchrotron scanning reveals amphibious ecomorphology in a new clade of bird-like dinosaurs | Nature (nature.com)
  3. Duck-Like Dinosaur Is Among Oddest Fossils Yet Found | National Geographic (nationalgeographic.com)
  4. Halszkaraptor 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: Raptors

Also from the same time: Late Cretaceous

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