Chosasinthika: Nyama youluka kwambiri padziko lonse lapansi - Quetzalcatlus.

Ponena za nyama yaikulu kwambiri yomwe idalipo padziko lonse lapansi, aliyense amadziwa kuti ndi chinsomba cha buluu, koma bwanji za nyama yayikulu kwambiri youluka? Tangoganizirani cholengedwa chochititsa chidwi komanso choopsa chomwe chikuyenda m'dambo zaka pafupifupi 70 miliyoni zapitazo, Pterosauria wautali pafupifupi mamita 4 wotchedwa Quetzalcatlus, womwe ndi wa banja la Azhdarchidae. Mapiko ake amatha kufika mamita 12 m'litali, ndipo ali ndi pakamwa pa mamita atatu m'litali. Amalemera theka la tani. Inde, Quetzalcatlus ndiye nyama yayikulu kwambiri youluka yodziwika padziko lapansi.

Dzina la mtundu waQuetzalcatlusamachokera kwa Quetzalcoatl, Mulungu wa Njoka Yamphongo mu chitukuko cha Aztec.

Quetzalcatlus inalidi yamphamvu kwambiri panthawiyo. Kwenikweni, Tyrannosaurus Rex wachinyamatayo analibe mphamvu iliyonse pamene anakumana ndi Quetzalcatlus. Ali ndi kagayidwe kachakudya kachangu ndipo amafunika kudya nthawi zonse. Chifukwa thupi lake ndi losalala, limafunikira mapuloteni ambiri kuti likhale ndi mphamvu. Tyrannosaurus rex yaying'ono yolemera makilogalamu osakwana 300 ikhoza kuonedwa ngati chakudya chifukwa cha iyo. Pterosauria iyi inalinso ndi mapiko akuluakulu, zomwe zinapangitsa kuti ikhale yoyenera kuuluka mtunda wautali.

Chidutswa choyamba cha mafupa a Quetzalcatlus chinapezeka ku Big Bend National Park ku Texas mu 1971 ndi Douglas A. Lawson. Chitsanzochi chinali ndi phiko laling'ono (lokhala ndi mwendo wakutsogolo wokhala ndi chala chachinayi chotambasuka), komwe mapiko ake akuyembekezeka kupitirira mamita 10. Pterosauria anali nyama zoyamba kukhala ndi mphamvu yamphamvu yotha kuuluka ndi tizilombo. Quetzalcatlus anali ndi sternum yayikulu, komwe minofu yothawira inkalumikizidwa, yayikulu kwambiri kuposa minofu ya mbalame ndi mileme. Chifukwa chake palibe kukayika kuti ndi "oyendetsa ndege" abwino kwambiri.

Kuchuluka kwa mapiko a Quetzalcatlus kukukambidwabe, ndipo kwayambitsanso mkangano wokhudza kuchuluka kwa momwe nyama zimayendera.

Pali malingaliro osiyanasiyana okhudza moyo wa Quetzalcatlus. Chifukwa cha mafupa ake aatali a m'chiberekero komanso nsagwada zake zazitali zopanda mano, mwina ankasaka nsomba ngati chilombo cholusa, nyama zowola ngati stork, kapena mbalame yamakono ya mtundu wa scassor.

Akuti Quetzalcatlus imauluka yokha, koma ikangofika mlengalenga imatha kutha nthawi yambiri ikuuluka.

Quetzalcatlus anakhalako kumapeto kwa nthawi ya Cretaceous, pafupifupi zaka 70 miliyoni zapitazo mpaka zaka 65.5 miliyoni zapitazo. Anatha pamodzi ndi ma dinosaur panthawi ya kutha kwa Cretaceous-Tertiary.

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