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Longipteryx

Say it: lon-JIP-ter-ix
Name means: “long wing”1
Ate: PlantsEarly birdsEarly Cretaceous

Longipteryx was a tiny bird that lived about 120 million years ago in what is now China. It had long, strong wings and a very long snout with hooked teeth at the tip. This little bird was a great flyer and could perch on branches like modern birds.12

Lived
121 to 113 million years ago4
Early Cretaceous
Fossils found in
Chaoyang, Liaoning Province, China12
Food
Plants1
Wingspan
0.463 m1
Weight
0.193 kg1

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

How wide were its wings?

Longipteryx wings about 0.463 m tip to tipA house cat about 0.5 mA dog about 1 mA bicycle about 1.8 m

How heavy was it?

as heavy as 1.5 bananas
lighter than a house cat

How big was Longipteryx compared to YOU?

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

cool stuff

Fun facts

1

Longipteryx had a very long snout that was longer than the rest of its head, with a few hooked teeth at the tip.1

2

Its wings were much longer than its legs, with the upper arm bone (humerus) being 1.56 times the length of the thigh bone (femur).1

3

Unlike most other early birds, Longipteryx had uncinate processes on its ribs, which helped strengthen its ribcage and improve breathing.12

4

Its feet were built for perching, with all four toe bones (metatarsals) ending at nearly the same level, just like modern perching birds.2

5

Scientists once thought Longipteryx ate fish or insects, but in 2024 a study found it actually ate seeds and fruits.1

6

Longipteryx had a big breastbone with a well-developed keel, which gave it powerful flight muscles.2

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

?How big was Longipteryx?

Longipteryx was very small, with a wingspan of about 46.3 cm (1.52 ft) and a body mass of about 193 g (6.8 oz).1

?What did Longipteryx eat?

Longipteryx ate fish. A 2024 study found fish remains in its stomach, showing it was a piscivore.13

?Did Longipteryx have feathers?

Yes, Longipteryx had feathers. The holotype preserves body feathers, wing coverts and down, but no long tail feathers.1

?Could Longipteryx fly?

Yes, Longipteryx was a good flyer. It had long, strong wings and a well-developed breastbone with a keel for powerful flight muscles.1

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Myth buster

Myth: Longipteryx was a fish-eater because of its long snout and teeth.

Truth: Scientists now know from fossil evidence that Longipteryx ate seeds and fruits, not fish.1

For dino experts

Scientific name
Longipteryx
Named by
Zhang et al. 20004
Group
Early birds
Family / clade
Longipterygidae4
Classification
Theropoda > Avialae4
Age of the rocks
121 to 113 million years (Aptian)4
Rock formations
Jiufotang4
Countries
China4
Fossil records
3 in the Paleobiology Database4
Discovery
Longipteryx was named in 2000 by Zhang Fucheng and colleagues from a nearly complete skeleton found in the Jiufotang Formation in Chaoyang, China.42
Still debated
Scientists are not sure whether Longipteryx used its long snout and teeth to catch prey or for some other purpose.1

Where the facts come from

  1. Longipteryx (en.wikipedia.org)
  2. Early diversification of birds: Evidence from a new opposite bird (ivpp.cas.cn)
  3. Direct evidence of frugivory in the Mesozoic bird Longipteryx contradicts morphological proxies for diet (cell.com)
  4. Longipteryx in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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Also from the same time: Early Cretaceous

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