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Zhongjianornis

Il num vul dir: “Zhongjian's bird, named after the founder of the Institute of Vertebrate Paleontology and Paleoanthropology, Yang Zhongjian”1

Mangiava: CharnUtschels primitivsCretacic tempriv

Zhongjianornis was a pigeon-sized bird that lived in China during the Early Cretaceous, about 120 million years ago. It had a toothless beak and strong wing muscles, making it a good flier. This little bird helps scientists understand how early birds evolved and lost their teeth.1 2

Viveva

avant 121 fin 113 milliuns onns4

Cretacic tempriv

Fossils chattads en

Jianchang, Liaoning Province, China (Jiufotang Formation)1 3

Lunghezza

0,2 fin 0,3 m (0,7 fin 1 ft)1 3

Paisa

0,3 kg fin 0,5 kg (1 fin 1 lb)1

Autezza

0,14 m (0,5 ft)

stima

Spertadad maximala

var 28 km/h (17 mph)

Sgular, stima

Cura viveva el?

Triassic

Giurassic

Cretacic

avant 252 milliuns onns20114566, l'asteroid

Quant grond era el?

Quant lung era el?

Quant aut era el?

stima

Quant grev era el?

uschè grev sco 4 bananas

pli lev ch'in giat da chasauschè grev sco 4 bananasuschè lung sco 9 bloccs da construcziun in suenter l'auteruschè pitschen ch'el pudeva ir sut ina sutgapudess sgular sur in entir plaz da ballape en 14 secundas

Quant grond era Zhongjianornis cumpareglià cun TAI?

Mo matematica en tes navigatur. Nagut na vegn arcunà u tramess.

Quant spert era el?

Ina persuna che va a pe var 5 km/h (3 mph)

In uffant sin il velo var 12 km/h (7 mph)

Zhongjianornis var 28 km/h (17 mph)

In chaval che galoppescha var 65 km/h (40 mph)

In gepard var 100 km/h (62 mph)

chaussas cool

Fatgs divertents

Zhongjianornis is one of the most primitive birds known to have completely lost its teeth, developing a beak instead.2

Its humerus had a large, robust deltopectoral crest, which was as wide as the bone shaft and more than one-third the total length of the humerus, indicating strong flight muscles.3

The only known fossil of Zhongjianornis is a nearly complete skeleton with some poorly preserved feather imprints.3

Zhongjianornis lived during the Aptian age of the Early Cretaceous, about 121 to 113 million years ago.3

Scientists initially thought Zhongjianornis was very primitive, but later research in 2012 suggested it was more similar to advanced euornithean birds like Chaoyangia.1

The species name yangi honors Yang Zhongjian, the founder of the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing.1

Maletg da Zhongjianornis fatg cun IA — In maletg fatg cun IA che mussa co Zhongjianornis pudess avair guardà ora, fatg d'in computer tenor quai che la scienza sa. I sa tracta d'ina supposiziun: l'animal vair ha forsa guardà ora auter, e sias colurs vairas èn nunenconuschentas.

tias dumondas

Las dumondas las pli frequentas davart Zhongjianornis

?How big was Zhongjianornis?

About the size of a pigeon. It was a small bird.1

?Did Zhongjianornis have teeth?

No, it had a toothless beak. It is one of the most primitive birds known to have completely lost its teeth.1 2

?What did Zhongjianornis eat?

Scientists are not sure, but its toothless beak suggests it may have eaten seeds or small insects.1

Chatschader da mitus

Mitus: Zhongjianornis was the most primitive toothless bird.

Vardad: While initially thought to be very primitive, later analysis in 2012 showed that Zhongjianornis is more closely related to advanced euornithean birds, not the most primitive.1

Per experts da dinos

Num scientific: Zhongjianornis
Numnà da: Zhou et al. 20104
Gruppa: Utschels primitivs
Famiglia / clada: Ornithuromorpha4
Classificaziun: Theropoda > Avialae4
Vegliadetgna da la crappa: 121 fin 113 milliuns onns (Aptian)4
Formaziuns da crap: Jiufotang4
Pajais: China4
Chats da fossils: 1 en The Paleobiology Database4
Scuverta: Zhongjianornis was named and described by Zhou, Zhang, and Li in a paper published in January 2010 (though it appeared online in 2009). The only fossil, a nearly complete skeleton, was found at Jianchang in Liaoning Province, China.1 2
Anc discutà: Scientists still debate whether Zhongjianornis was a very primitive bird or a more advanced euornithean, due to conflicting interpretations of its fossil's anatomy.1

Danunder che vegnan ils fatgs

Zhongjianornis (en.wikipedia.org)
A new Lower Cretaceous bird from China and tooth reduction in early avian evolution (royalsocietypublishing.org)
PBDB Taxon (paleobiodb.org)
Zhongjianornis in The Paleobiology Database (CC BY 4.0): vegliadetgna, lieus, formaziuns da crap, classificaziun.

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