Grabauornis

Zita rinoreva: “Grabau's bird”1

Raidya: NyamaShiri dzekutangaCretaceous Yekutanga

Grabauornis was a small, toothed bird that lived about 125 million years ago in what is now China. It was a good flyer and had a special thumb feather called an alula that helped it steer in the air.1 2

Raivapo

makore mamiriyoni 126 kusvika 120 apfuura4

Cretaceous Yekutanga

Mafosiri akawanikwa:

Liaoning Province, China1 3

Kureba

0.1 kusvika 0.3 m (0.3 kusvika 1 ft)3

Kumhanya kwepamusoro

kunenge 27 km/h (17 mph)

Kubhururuka, fungidziro

Rairarama rini?

Triassic

Jurassic

Cretaceous

makore mamiriyoni 252 apfuura20114566, dombo guru rakabva mudenga

Raiva hombe sei?

Raiva refu zvakadii?

kureba sezvidhinha zvematoyi 9 zvakatevedzanaraigona kubhururuka richiyambuka nhandare yose yebhora mumasekonzi 14

Grabauornis raiva hombe sei kana richienzaniswa NEWE?

Masvomhu chete mubrowser yako. Hapana chinochengetwa kana kutumirwa kupi zvako.

Raimhanya zvakadii?

Munhu achifamba kunenge 5 km/h (3 mph)

Mwana ari pabhasikoro kunenge 12 km/h (7 mph)

Grabauornis kunenge 27 km/h (17 mph)

Bhiza richimhanya kunenge 65 km/h (40 mph)

Dindingwe kunenge 100 km/h (62 mph)

zvinhu zvinonakidza

Zvinonakidza

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.1 2

The fossil of Grabauornis was found in the Yixian Formation, a famous rock layer that has preserved many amazing feathered dinosaurs and early birds.1 3

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.1 2

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

Mufananidzo wakagadzirwa neAI: Grabauornis — Mufananidzo wakagadzirwa neAI unoratidza kuti Grabauornis ringangodai raitaridzika sei, wakagadzirwa nekombiyuta kubva pane zvinozivikanwa nemasayendisiti. Ifungidziro chete: mhuka chaiyo ingangodai yaitaridzika zvakasiyana, uye hapana anoziva mavara ayo chaiwo.

Zvevanyanzvi vemadhino

Zita resainzi: Grabauornis
Akaripa zita:: Dalsatt et al. 20144
Boka: Shiri dzekutanga
Mhuri / boka: Euenantiornithes4
Kurongwa kwemhuka: Theropoda > Avialae4
Zera rematombo: makore mamiriyoni 126 kusvika 120 (Barremian / Aptian)4
Mapoka ematombo: Yixian4
Nyika: China4
Zvinyorwa zvemafosiri: 1 mu The Paleobiology Database4
Kuwanikwa: 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.1 2
Zvichiri kupokanwa: Scientists are still debating exactly how Grabauornis is related to other enantiornithean birds, since its skeleton shows a unique mix of features.1

Kunobva chokwadi

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): zera, nzvimbo, mapoka ematombo, kurongwa kwemhuka.

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