Dinokaart nr. 1994 van 2 027

Yuornis

Naam beteken: “Henan bird, after the Chinese abbreviation for Henan province”1

Yuornis was a bird that lived alongside the last dinosaurs. It had a toothless beak, just like modern birds, which was very rare for its time.1

Het geleef

72 tot 66 miljoen jaar gelede3

Laat Kryt

Fossiele gevind in

Qiupa Formation, Luanchuan Basin, Henan, China3 1

Topspoed

omtrent 27 km/h (17 mph)

Vlieënd, skatting

Wanneer het dit geleef?

Trias

Jura

Kryt

252 miljoen jaar gelede20114566, die asteroïde

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)

Yuornis 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

Yuornis is one of the most complete Late Cretaceous enantiornithine birds ever found, with a three-dimensionally preserved skull.1

Unlike most enantiornithines, Yuornis had no teeth. Its skull looked a lot like modern birds because it lost several bones, like the lacrimal and postorbital.1

The name Yuornis comes from 'Yu', the one-character abbreviation for Henan province in China, where it was discovered.1

Yuornis lived about 72 to 66 million years ago, during the very end of the Age of Dinosaurs.3

Its closest relative might be Gobipteryx, another toothless bird from the Late Cretaceous, but scientists are not sure because tooth loss evolved many times.1

KI-prent van Yuornis — 'n KI-prent van hoe Yuornis 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: Yuornis
Benoem deur: Xu et al. 20213
Groep: Vroeë voëls
Familie / klade: Enantiornithes3
Klassifikasie: Theropoda > Avialae3
Ouderdom van die rotse: 72 tot 66 miljoen jaar (Maastrichtian)3
Rotsformasies: Qiupa3
Lande: China3
Fossielrekords: 1 in The Paleobiology Database3
Ontdekking: Yuornis was named in 2021 by Xu Li and colleagues. The species name junchangi honors paleontologist Lü Junchang. The fossil was found in the Qiupa Formation of Henan, China.1 2
Steeds omstrede: Scientists are not sure whether Yuornis belongs to the family Gobipterygidae, because the features linking it to that group are all related to tooth loss, which evolved many times separately.1

Waar die feite vandaan kom

Yuornis (en.wikipedia.org)
PBDB Taxon (paleobiodb.org)
Yuornis in The Paleobiology Database (CC BY 4.0): ouderdom, plekke, rotsformasies, klassifikasie.

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