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Bohaiornis

Say it: boh-HAY-or-niss
Name means: “Bohai bird, named after the Bohai region in China”1
Ate: MeatEarly birdsEarly Cretaceous

Bohaiornis was a feathered dinosaur that lived about 120 million years ago in what is now China. It was a bird-like predator with sharp teeth and long tail feathers. Scientists found a nearly complete skeleton that shows it was a fast, ground-dwelling hunter.15

Lived
121 to 113 million years ago5
Early Cretaceous
Fossils found in
Fossils were found in the Jiufotang Formation of western Liaoning, China.15
Food
Meat51
Weight
0.242 kg to 0.358 kg3
adult specimen IVPP V17963, mean 300â€Ŋg

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How big was it?

How heavy was it?

as heavy as 3 bananas
lighter than a house cat

How big was Bohaiornis compared to YOU?

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cool stuff

Fun facts

1

Bohaiornis had two long, ribbon-like feathers on its tail, not a fan of short feathers like many other birds.1

2

It was much larger than its close relative Eoenantiornis, which lived a bit earlier.1

3

The first skeleton found was almost complete, with all its bones still connected.2

4

Scientists once thought it had stones in its belly to help grind food, but those turned out to be mineral lumps that formed after death.1

5

Bohaiornis had a broad snout, which is unusual for early birds that ate meat.1

6

It lived during the Early Cretaceous, about 120 million years ago.1

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

?How big was Bohaiornis?

Scientists do not give an exact size, but it was much larger than its close relative Eoenantiornis, and a second, even larger specimen has been found.14

?What did Bohaiornis eat?

It was probably a meat-eater, maybe a raptorial predator. Scientists once thought it had stomach stones to help grind food, but those turned out to be mineral lumps that formed after death.14

?Did Bohaiornis have feathers?

Yes. The first skeleton found had two long, ribbon-like feathers attached to its tail.1

?When did Bohaiornis live?

It lived during the Early Cretaceous, about 120 million years ago, in what is now China.1

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Myth buster

Myth: People might think Bohaiornis ate plants because it had stones in its stomach.

Truth: The stones were actually mineral concretions that formed after the animal died, and Bohaiornis was a meat-eater.1

For dino experts

Scientific name
Bohaiornis
Named by
Hu et al. 20115
Group
Early birds
Family / clade
Bohaiornithidae5
Classification
Theropoda > Avialae5
Age of the rocks
121 to 113 million years (Aptian)5
Rock formations
Jiufotang5
Countries
China5
Fossil records
2 in the Paleobiology Database5
Discovery
Bohaiornis was named by Dongyu Hu, Li Li, Lianhaim Hou, and Xing Xu in 2011. They described a nearly complete skeleton from the Yixian Formation in China.21
Still debated
Scientists still debate what exactly Bohaiornis ate, because its stomach contents are not clear.1

Where the facts come from

  1. Bohaiornis (en.wikipedia.org)
  2. A new enantiornithine bird from the Lower Cretaceous of western L...: Ingenta Connect (ingentaconnect.com)
  3. Synthetic analysis of trophic diversity and evolution in Enantiornithes with new insights from Bohaiornithidae (pmc.ncbi.nlm.nih.gov)
  4. A new specimen of large-bodied basal Enantiornithine Bohaiornis from the Early Cretaceous of China and the inference of feeding ecology in Mesozoic birds | Journal of Paleontology | Cambridge Core (cambridge.org)
  5. Bohaiornis 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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