Dinokaart nr. 0747 van 2 027

Grabauornis

Naam beteken: “Grabau's bird”1

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

Het geleef

126 tot 120 miljoen jaar gelede4

Vroeë Kryt

Fossiele gevind in

Liaoning Province, China1 3

Lengte

0,1 tot 0,3 m (0,3 tot 1 ft)3

Topspoed

omtrent 27 km/h (17 mph)

Vlieënd, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

Hoe groot was dit?

Hoe lank was dit?

so lank soos 9 speelgoedboustene in 'n rykon in 14 sekondes oor 'n hele sokkerveld vlieg

Hoe groot was Grabauornis vergeleke met JOU?

Net wiskunde in jou blaaier. Niks word gestoor of êrens heen gestuur nie.

Hoe vinnig was dit?

'n Mens wat loop omtrent 5 km/h (3 mph)

'n Kind op 'n fiets omtrent 12 km/h (7 mph)

Grabauornis omtrent 27 km/h (17 mph)

'n Galopperende perd omtrent 65 km/h (40 mph)

'n Jagluiperd omtrent 100 km/h (62 mph)

cool goed

Prettige feite

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

KI-prent van Grabauornis — 'n KI-prent van hoe Grabauornis dalk gelyk het, deur 'n rekenaar gemaak uit wat wetenskaplikes weet. Dit is 'n raaiskoot: die regte dier het dalk anders gelyk, en niemand weet wat sy regte kleure was nie.

Vir dino-kenners

Wetenskaplike naam: Grabauornis
Benoem deur: Dalsatt et al. 20144
Groep: Vroeë voëls
Familie / klade: Euenantiornithes4
Klassifikasie: Theropoda > Avialae4
Ouderdom van die rotse: 126 tot 120 miljoen jaar (Barremian / Aptian)4
Rotsformasies: Yixian4
Lande: China4
Fossielrekords: 1 in The Paleobiology Database4
Ontdekking: 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
Steeds omstrede: Scientists are still debating exactly how Grabauornis is related to other enantiornithean birds, since its skeleton shows a unique mix of features.1

Waar die feite vandaan kom

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): ouderdom, plekke, rotsformasies, klassifikasie.

Elke feit op hierdie bladsy het 'n nommer wat na sy bron wys. As ons iets verkeerd het, jammer, ons is dino-aanhangers, nie 'n wetenskapjoernaal nie. Laat weet ons by [email protected] en ons maak dit reg.

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