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Datos curiosos
Grabauornis belongs to a group of early birds called enantiornitheans, which were the most common birds during the Age of Dinosaurs.1
Its humerus (upper arm bone) was 95% the length of its ulna (forearm bone), which is about average for enantiornitheans and shows it was a capable flyer.12
The fossil of Grabauornis was found in the Yixian Formation, a famous rock layer that has preserved many amazing feathered dinosaurs and early birds.13
Grabauornis had an alula, a small feather on its thumb that helped it fly slowly and land precisely, like the flaps on an airplane wing.12
The name Grabauornis honors Amadeus William Grabau, a famous geologist and paleontologist who worked in China.1
Its wishbone had a well-developed hypocleidium, a part that helped strengthen its chest for powerful wing beats.1

Para expertos en dinos
- Nome científico
- Grabauornis
- Bautizado por
- Dalsatt et al. 20144
- Grupo
- Aves primitivas
- Familia / clado
- Euenantiornithes4
- Clasificación
- Theropoda > Avialae4
- Idade das rochas
- de 126 a 120 millóns de anos (Barremian / Aptian)4
- Formacións rochosas
- Yixian4
- Países
- China4
- Rexistros fósiles
- 1 na Paleobiology Database4
- Descubrimento
- Grabauornis was named and described in 2014 by scientists Johan Dalsätt, Per Ericson, and Zhou Zhonghe. The fossil was found near the city of Lingyuan in Liaoning, China.12
- Aínda en debate
- Scientists are still debating exactly how Grabauornis is related to other enantiornithean birds, since its skeleton shows a unique mix of features.1
De onde veñen os datos
- Grabauornis (en.wikipedia.org)
- A New Enantiornithes (Aves) from the Early Cretaceous of China (geojournals.cn)
- PBDB Taxon (paleobiodb.org)
- Grabauornis in The Paleobiology Database (CC BY 4.0): idade, lugares, formacións rochosas, clasificación.
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