Xiangornis

Magacu wuxuu ka dhigan yahay: “shimbir duulimaad xor ah”1

Cunay: HilibShimbiraha hore (xilligii dinos-ka)Cretaceous-kii hore

Xiangornis waxay ahayd shimbir qadiimi ah oo noolayd qiyaastii 120 milyan oo sano ka hor. Waxay lahayd isku-dar astaamo ah oo ka yimid laba kooxood oo waaweyn oo shimbiraha hore ah, taas oo ka dhigaysa xayawaan dahsoon oo gaar ah. Lafaha baalasheeda ayaa horeyba isugu milmay sida shimbiraha casriga ah, taas oo ka caawisay inay si xoog leh u duusho.1 2

Noolaayeen

121 ilaa 113 milyan sano ka hor4

Cretaceous-kii hore

Fossil-ka laga helay

Gobolka Liaoning, Shiinaha1 2

Xawaaraha ugu sarreeya

ku dhowaad 27 km/h (17 mph)

Duulid, qiyaas

Goorma ayuu noolaa?

Triassic

Jurassic

Cretaceous

252 milyan oo sano ka hor20114566, asteroid-kii

Intee in le'eg ayuu u dheereeyay?

Qof soconaya qiyaastii 5 km/h (3 mph)

Ilmo baaskiil wata qiyaastii 12 km/h (7 mph)

Xiangornis qiyaastii 27 km/h (17 mph)

Faras ordaya qiyaastii 65 km/h (40 mph)

Harimcad qiyaastii 100 km/h (62 mph)

waxyaabo qabow

Xaqiiqooyin xiiso leh

Xiangornis waxay ka tirsan tahay koox la yiraahdo Enantiornithes, kuwaas oo ahaa shimbiraha ugu badan xilligii Cretaceous.3 1

Lafaha baalasheeda (carpometacarpus) ayaa gebi ahaanba isugu milmay, labadaba meel u dhow jirka iyo meel ka fog, sida shimbiraha casriga ah.1 2

Xiangornis waxay lahayd extensor process weyn oo ku yaal baalkeeda, oo ah buro lafo ah oo ka caawisay inay ku xirto muruqyada iyo seedaha duulimaad xoog leh.1 2

Shimbirtani waxay muujinaysaa in qaar ka mid ah astaamaha loo malaynayay inay leeyihiin shimbiraha casriga ah oo keliya ay dhab ahaantii horumareen goor hore oo si gaar ah ugu dhex dhacay enantiornithines.1 2

Magaca Xiangornis wuxuu ka yimid erayo Mandarin ah oo macnahoodu yahay 'duulimaad xor ah' iyo erayga Giriigga ah ee shimbir.1 2

Xiangornis waxay noolayd xilligii Aptian, qiyaastii 121 ilaa 113 milyan oo sano ka hor, meesha hadda loo yaqaan Liaoning, Shiinaha.3

Sawirka Xiangornis oo uu sameeyay AI — Sawir uu sameeyay AI oo muujinaya sida Xiangornis u ekaan karay, oo uu kombuyuutarku ka sameeyay waxa ay saynisyahannadu yaqaaniin. Waa qiyaas: xayawaanka dhabta ah waxaa laga yaabaa inuu u ekaa si ka duwan, qofna ma garanayo midabadiisa dhabta ah.

Khubarada dino

Magaca sayniska: Xiangornis
Waxaa magacaabay: Hu et al. 20124
Koox: Shimbiraha hore (xilligii dinos-ka)
Qoyska / kooxda: Enantiornithes4
Kala soocidda: Theropoda > Avialae4
Xilligii dhagaxyada: 121 ilaa 113 milyan oo sano (Aptian)4
Dhagaxyada: Jiufotang4
Waddamada: China4
Diiwaanka fossil-ka: 1 oo ku jira Paleobiology Database4
Daahfurka: Xiangornis waxaa magacaabay Hu iyo asxaabtiisa sannadkii 2012 iyadoo lagu salaynayo lafo qayb ah oo laga helay Jiufotang Formation ee Liaoning, Shiinaha. Fosillada waxaa ku jira lafaha baalka iyo garabka.3 1
Wali waa la isku khilaafsan yahay: Saynisyahannadu weli way doodayaan haddii Xiangornis ay dhab ahaantii tahay enantiornithine ama haddii ay khalkhal galiso xadka u dhexeeya enantiornithines iyo ornithuromorphs (kooxda ay ku jiraan shimbiraha casriga ah).1 2

Halka xaqiiqadu ka timaaddo

A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution (tandfonline.com)
A new enantiornithine bird from the Lower Cretaceous of Western Liaoning, China, and its implications for early avian evolution (ivpp.cas.cn)
PBDB Taxon (paleobiodb.org)
Xiangornis in The Paleobiology Database (CC BY 4.0): da'da, meelaha, qaab-dhismeedka dhagaxyada, kala-soocidda.

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