Cerebavis
Cerebavis waxay ahayd shimbir noolayd qiyaastii 95 milyan oo sano ka hor, xilligii dinosaurs-ka. Waxay lahayd maskax u eeg mid casri ah, ku dhowaad sida maskaxda shimbiraha aad maanta aragto. Qolofkeeda madaxa waxaa laga helay Ruushka, saynisyahannaduna waxay u isticmaaleen iskaanno gaar ah si ay u daraaseeyaan qaabka maskaxdeeda.2
Goorma ayuu noolaa?
Intee in le'eg ayuu u dheereeyay?
Xaqiiqooyin xiiso leh
Cerebavis waxaa lagu yaqaanaa hal madax oo qayb ah, kaas oo markii hore loo maleeyay inuu yahay maskax fossil ah.1
Saynisyahannadu hadda waxay og yihiin in shayga uu yahay madax, ee uusan ahayn maskax, waxayna isticmaaleen iskaanno CT ah si ay u arkaan qaabka maskaxda ee gudaha.2
Cerebavis ma lahayn temporal fenestrae, kuwaas oo ah daloollo ku yaal madaxa gadaashiisa indhaha. Tani waa astaanta shimbiraha ornithurine, ee ma aha enantiornithines.2
Maskaxda Cerebavis waxay ka badnayd maskaxda shimbir casri ah marka loo eego maskaxda Archaeopteryx, oo ahayd shimbir hore.2
Cerebavis ma lahayn wulst, qayb gaar ah oo maskaxda ka mid ah oo ka caawisa shimbiraha casriga ah aragga iyo taabashada. Astaantan weli ma aysan horumarin 93 milyan oo sano ka hor.2
Lafaha madaxa ee Cerebavis aad bay isugu dhegganayeen, taas oo ah calaamad muujinaysa la qabsiga duulimaadka horumarsan, oo la mid ah shimbiraha duula ee casriga ah.2
Weydii Rex wax ku saabsan Cerebavis
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Burinta khuraafaadka
Khuraafaad: Cerebavis waxay ahayd dinosaur leh maskax u muuqata mid aad u qariib ah oo ka duwan xayawaan kasta oo kale.
Runta: Saynisyahannadu waxay markii hore u maleeyeen in maskaxdu ay ahayd mid aan caadi ahayn, laakiin iskaannada CT-ga ee cusub ayaa muujinaya inay dhab ahaantii aad ugu ekayd maskaxda shimbiraha casriga ah.2
Khubarada dino
- Magaca sayniska
- Cerebavis
- Waxaa magacaabay
- Kurochkin and Saveliev 20063
- Koox
- Shimbiraha hore (xilligii dinos-ka)
- Qoyska / kooxda
- Ornithurae3
- Kala soocidda
- Theropoda > Avialae3
- Xilligii dhagaxyada
- 100 ilaa 94 milyan oo sano (Cenomanian)3
- Dhagaxyada
- Melovatka3
- Waddamada
- Russia3
- Diiwaanka fossil-ka
- 1 oo ku jira Paleobiology Database3
- Daahfurka
- Fossil-ka kaliya ee la yaqaan ee Cerebavis waxaa la helay 1993 ee Melovatskaya Formation ee Ruushka. Waxaa magacaabay Cerebavis cenomanica Evgeny Kurochkin iyo asxaabtiisa sanadkii 2006.12
- Wali waa la isku khilaafsan yahay
- Saynisyahannadu si dhab ah uma hubo inta ay le'egayd Cerebavis sababtoo ah waxaa la helay oo kaliya madax, mana jiro fossil jidhka ah.2
Halka xaqiiqadu ka timaaddo
- Cerebavis (en.wikipedia.org)
- A reappraisal of Cerebavis cenomanica (Aves, Ornithurae), from Melovatka, Russia (pmc.ncbi.nlm.nih.gov)
- Cerebavis in The Paleobiology Database (CC BY 4.0): da'da, meelaha, qaab-dhismeedka dhagaxyada, kala-soocidda.
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