Xiangornis
Xiangornis bụ nnụnụ oge ochie nke biri ihe dị ka nde afọ 120 gara aga. O nwere ngwakọta nke àgwà sitere na nnukwu otu abụọ nke nnụnụ oge mbụ, na-eme ka ọ bụrụ ihe e kere eke dị omimi ma pụrụ iche. Ọkpụkpụ nku ya ejikọtalarị ọnụ dị ka nke nnụnụ nke oge a, nke nyeere ya aka ife efe nke ọma.12
Olee mgbe ọ dịrị ndụ?
Olee otú ọsọ o si gbaa?
Eziokwu ndị na-atọ ụtọ
Ọkpụkpụ nku ya (carpometacarpus) ejikọtala ọnụ kpamkpam, ma nso ahụ ma n'ebe dị anya, dị nnọọ ka nke nnụnụ nke oge a.12
Xiangornis nwere nnukwu extensor process na nku ya, nke bụ ọkpụkpụ pụtara ìhè nke nyeere aka ijikọ akwara na ligaments maka ife efe siri ike.12
Nnụnụ a na-egosi na ụfọdụ njirimara a chere na ọ bụ naanị nnụnụ nke oge a nwere, pụtara n'ezie na mbụ ma dị iche na enantiornithines.12
Xiangornis biri n'oge Aptian, ihe dị ka nde afọ 121 ruo 113 gara aga, n'ebe bụzi Liaoning, China.3


Jụọ Rex gbasara Xiangornis
Rex na-aza ajụjụ gbasara ibe a naanị. Ajụjụ 10 n'ọnwa.
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Maka ndị ọkachamara dinosaur
- Aha sayensị
- Xiangornis
- Onye nyere ya aha
- Hu et al. 20124
- Otu
- Early birds (nnụnụ ndị mbụ)
- Ezinụlọ / clade
- Enantiornithes4
- Nhazi
- Theropoda > Avialae4
- Oge nke nkume
- 121 ruo 113 nde afọ (Aptian)4
- Nkume ndị e hiwere
- Jiufotang4
- Mba
- China4
- Ihe ndekọ fossil
- 1 n'ime Paleobiology Database4
- Nchọpụta
- Hu na ndị ọrụ ibe ya kpọrọ Xiangornis aha na 2012 dabere na ọkpụkpụ fọdụrụnụ nke a chọtara na Jiufotang Formation nke Liaoning, China. Ihe fọdụrụnụ gụnyere ọkpụkpụ nku na ubu.31
- A ka na-arụrịta ụka
- Ndị ọkà mmụta sayensị ka na-arụrịta ụka ma Xiangornis ọ̀ bụ n'ezie enantiornithine ma ọ bụ ma ọ̀ na-agbagwoju anya n'etiti enantiornithines na ornithuromorphs (òtù gụnyere nnụnụ nke oge a).12
Ebe eziokwu si bịa
- 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): afọ, ebe, nhazi nkume, nhazi.
Eziokwu ọ bụla dị na peeji a nwere nọmba na-egosi ebe o si. Ọ bụrụ na anyị mejọrọ ihe, biko gbaghara anyị, anyị bụ ndị na-akwado dinosaur, ọ bụghị akwụkwọ sayensị. Gwa anyị na [email protected] anyị ga-edozi ya.
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