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Eocathayornis

Say it: ee-oh-KATH-ay-OR-nis
Name means: “dawn Cathayornis, referring to its more primitive build compared to Cathayornis”1
Ate: MeatEarly birdsEarly Cretaceous

Eocathayornis was a small, early bird that lived during the Age of Dinosaurs. It could flap its wings powerfully and fly like a modern bird, but it still had teeth and claws on its wings.2

Lived
121 to 113 million years ago3
Early Cretaceous
Fossils found in
Boluochi, Chaoyang County, Liaoning Province, northeast China21
Top speed
about 27 km/h (17 mph)
Flying, estimate

When did it live?

Triassic
Jurassic
Cretaceous
252 million years ago20114566, the asteroid

How fast was it?

cool stuff

Fun facts

1

Eocathayornis had a reduced claw on its third wing finger, but the other two wing claws were still present.2

2

Its radius bone was about three-fourths as wide as its ulna, which helped make its wing strong for flapping.2

3

The sternum (breastbone) had a keel and a pair of long, backward-pointing processes, adaptations for flight.2

4

Eocathayornis was about the same size as Cathayornis, another early bird from the same fossil site.2

5

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

6

The only known fossil is a skull and upper body preserved as impressions in rock, split into two slabs.1

AI-madeAI-made picture of Eocathayornis
An AI-made picture of how Eocathayornis 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.

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Scientific name
Eocathayornis
Named by
Zhou 20023
Group
Early birds
Family / clade
Enantiornithes3
Classification
Theropoda > Avialae3
Age of the rocks
121 to 113 million years (Aptian)3
Rock formations
Jiufotang3
Countries
China3
Fossil records
1 in the Paleobiology Database3
Discovery
The fossil was collected in 1994 by Zhou Zhonghe from the Jiufotang Formation in Liaoning, China. Zhou named it Eocathayornis walkeri in 2002, honoring Cyril Alexander Walker for his work on Enantiornithes.12
Still debated
Scientists are not sure exactly how Eocathayornis is related to other early birds, but it is thought to be more primitive than Cathayornis.1

Where the facts come from

  1. Eocathayornis (en.wikipedia.org)
  2. A new and primitive enantiornithine bird from the Early Cretaceous of China (ivpp.cas.cn)
  3. Eocathayornis in The Paleobiology Database (CC BY 4.0): age, places, rock formations, classification.

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More from the same group: Early birds

Also from the same time: Early Cretaceous

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