"King nose?"Wannan shine sunan da aka ba wani hadrosaur da aka gano kwanan nan mai suna Rhinorex condrupus na kimiyya.Ya binciko ciyayi na Late Cretaceous kimanin shekaru miliyan 75 da suka wuce.
Ba kamar sauran hadrosaurs ba, Rhinorex ba shi da kashi ko nama a kansa.A maimakon haka, ya yi wasa da babban hanci.Har ila yau, an gano shi ba a cikin wani dutse mai dutse ba kamar sauran hadrosaurs amma a Jami'ar Brigham Young a kan wani shelf a cikin ɗakin baya.
Shekaru da dama, masu farautar burbushin dinosaur sun ci gaba da gudanar da ayyukansu tare da tsinke da shebur da kuma wani lokaci mai ƙarfi.Suna chiseled da fashewa da tarin duwatsu a kowane lokacin rani, suna neman ƙasusuwa.Dakunan gwaje-gwaje na jami'a da gidajen tarihi na tarihin halitta cike da kwarangwal ko cikakkun kwarangwal na dinosaur.Wani muhimmin kaso na burbushin, ko da yake, yana kasancewa a cikin akwatunan da simintin gyare-gyaren filasta a cikin kwandon ajiya.Ba a ba su damar ba da labarinsu ba.
Wannan yanayin ya canza yanzu.Wasu masana burbushin halittu sun bayyana kimiyyar Dinosaur kamar yadda ake samun farfadowa na biyu.Abin da suke nufi shi ne, ana ɗaukar sabbin hanyoyi don samun zurfafa fahimtar rayuwa da lokutan dinosaur.
Ɗaya daga cikin waɗannan sababbin hanyoyin shine kawai duba abin da aka riga aka samu, kamar yadda ya faru na Rhinorex.
A cikin 1990s, an ajiye burbushin Rhinorex a Jami'ar Brigham Young.A lokacin, masana burbushin halittu sun mayar da hankali kan abubuwan fata da aka samu akan kasusuwan kututturen hadrosaur, suna barin lokaci kaɗan don burbushin kwanyar har yanzu a cikin duwatsu.Sa'an nan, biyu masu bincike na postdoctoral yanke shawara su dubi dinosaur kwanyar.Bayan shekaru biyu, an gano Rhinorex.Masana burbushin halittu sun yi sabon haske kan aikinsu.
An haƙa Rhinorex ne daga wani yanki na Utah da ake kira shafin Neslen.Masanan ilimin ƙasa suna da kyakkyawan hoto mai haske game da yanayin wurin Neslen da ya daɗe.Wuri ne na estuarine, wani lungu da sako na bogi inda ruwan gishiri da gishiri ya gauraye kusa da bakin tekun tsohon teku.Amma a cikin ƙasa, mai nisan mil 200, filin ya bambanta sosai.Sauran hadrosaurs, nau'in crested, an tono su a cikin ƙasa.Domin masana burbushin halittu na farko ba su bincika cikakken kwarangwal na Neslen ba, sun ɗauka shi ma hadrosaur ce mai ƙima.Sakamakon wannan zato, an yanke shawarar cewa duk ƙwararrun hadrosaurs za su iya yin amfani da albarkatun ƙasa da ƙasa daidai gwargwado.Sai da masana burbushin halittu suka sake duba shi cewa ainihin Rhinorex ne.
Kamar guntun wasan wasa da ke faɗowa wuri, gano cewa Rhinorex sabon nau'in rayuwar Late Cretaceous ne.Nemo "King Hanci" ya nuna cewa nau'in hadrosaurs daban-daban sun daidaita kuma sun samo asali don cika nau'o'in halittu daban-daban.
Ta hanyar duban burbushin da ke cikin kwandon kura mai kura, masana burbushin halittu suna samun sabbin rassan bishiyar dinosaur na rayuwa.
——— Daga Dan Risch
Lokacin aikawa: Fabrairu-01-2023