Imwe nzira yekudzidza nezvenhoroondo yekare inogona kunzi "dinosaur blitz."
Izwi iri rinotorwa kubva kunyanzvi dzezvinhu zvipenyu dzinoronga "bio-blitzes." Mubio-blitz, vanozvipira vanoungana kuti vatore sampuro yega yega yehupenyu inobvira kubva kunzvimbo yakatarwa munguva yakatarwa. Semuenzaniso, bio-blitzers vanogona kuronga pakupera kwevhiki kuti vatore sampuro dzese dzemhuka dzinogara mumvura nezvinokambaira zvinogona kuwanikwa mumupata wegomo.
Mukuita dino-blitz, pfungwa ndeyekuunganidza zvisaririra zvakawanda zvemhando imwe chete yedinosaur kubva pamubhedha chaiwo wezvisaririra kana kubva panguva yakatarwa sezvinobvira. Nekuunganidza sampuro yakakura yemhando imwe chete, vanachiremba vepa paleontologists vanogona kutsvaga shanduko dzemuviri muhupenyu hwenhengo dzemhando iyi.
Zvakabuda muongororo yeimwe dino-blitz, yakaziviswa muzhizha ra2010, zvakakanganisa nyika yevavhimi vemadinosaur. Zvakakonzerawo gakava riripo nhasi.
Kwemakore anopfuura zana, nyanzvi dzepaleontologists dzakadhirowa matavi maviri akasiyana pamuti wehupenyu hwedinosaur: rimwe raTriceratops uye rimwe raTorosaurus. Kunyangwe paine musiyano pakati pezviviri izvi, zvakafanana zvakawanda. Zvose zviri zviviri zvaive zvinodya zvinomera. Zvose zvakararama munguva yeLate Cretaceous. Zvose zviri zviviri zvakamera mapfupa, senhoo, kumashure kwemisoro yazvo.
Vaongorori vakashamisika kuti dino-blitz ingaratidzei nezvezvisikwa zvakafanana zvakadaro.
Mumakore gumi, nzvimbo yeMontana yakapfuma mune zvisaririra inozivikanwa seHell Creek Formation yakatorwa kuti iwane mapfupa eTriceratops neTorosaurus.
Makumi mana muzana ezvisaririra zvakabva kuTriceratops. Mamwe madehenya aive saizi yenhabvu dzekuAmerica. Mamwe aive saizi yemota diki. Uye ese akafa padanho rakasiyana rehupenyu.
Nezvezvasara zveTorosaurus, zvinhu zviviri zvakabuda pachena: chekutanga, mafossil eTorosaurus aive mashoma, uye chechipiri, hapana madehenya eTorosaurus asina kukura kana echidiki akawanikwa. Dehenya rega rega reTorosaurus raive dehenya guru revanhu vakuru. Sei zvakadaro? Sezvo nyanzvi dzepaleontologists dzakafungisisa mubvunzo uyu uye dzikabvisa mukana mumwe mushure meumwe, dzakasara nemhedziso imwe chete isingadzivisiki. Torosaurus yakanga isiri mhando yakasiyana yedinosaur. Dinosaurs yagara ichinzi Torosaurus ndiyo fomu yekupedzisira yeTriceratops yevanhu vakuru.
Humbowo hwacho hwakawanikwa mumadehenya. Kutanga, vaongorori vakaongorora hunhu hwemadehenya. Vakanyatsoongorora kureba, upamhi, uye ukobvu hwedehenya rega rega. Zvadaro vakaongorora zvinhu zvidiki diki zvakaita sekugadzirwa kwechimiro chepamusoro uye shanduko diki mumadehenya. Kuongorora kwavo kwakaratidza kuti madehenya eTorosaurus akanga "agadziriswazve zvakanyanya". Nemamwe mashoko, madehenya eTorosaurus nemadehenya emapfupa akanga achinja zvakanyanya muhupenyu hwemhuka. Uye humbowo ihwohwo hwekuvandudzwa hwaive hwakakura zvikuru kupfuura humbowo huri mudehenya guru reTriceratops, mamwe acho akaratidza zviratidzo zvekushanduka.
Munyaya huru, zvakawanikwa ne dino-blitz zvinoratidza zvakasimba kuti madinosaur mazhinji anozivikanwa semhando dzakasiyana anogona kunge ari mhando imwe chete.
Kana zvimwe zvidzidzo zvichitsigira mhedziso yeTorosaurus-se-mukuru-Triceratops, zvinoreva kuti madinosaur eLate Cretaceous pamwe akanga asina kusiyana-siyana sezvinofungidzirwa nevakawanda vepaleontologists. Mhando shoma dzemadinosaur dzaireva kuti akanga asinganyanyi kuchinjika nekuchinja kwenharaunda uye/kana kuti akanga atove ari kudzikira. Chero nzira, madinosaur eLate Cretaceous angadai akatsakatika mushure mechiitiko chakangoerekana chaitika chakachinja mamiriro ekunze ePasi nenzvimbo kupfuura boka rakasiyana-siyana.
——— Kubva kuna Dan Risch
Nguva yekutumira: Kukadzi-17-2023