Eminyakeni ethile edlule, eNtshonalanga Canada, umsebenzi wezimayini waholela ekutholakaleni okubaluleke kakhulu emhlabeni osekukhunjulwa muva nje. Iqembu labavukuzi lizithele ngephutha kulokho okungenzeka ukuthi isayensi yesidumbu se-dinosaur esake yabonwa.
I-nodosaur, isilwane esidla uhlaza esasingamafidi angu-18 ubude futhi sicishe sibe ngamakhilogremu angu-3,000, satholwa ngo-2011 yithimba elisebenza amakhilomitha angu-17 enyakatho ye-Alberta, eCanada emsebenzini wezimayini. Lokhu kutholakala okuthakazelisayo njengoba izinsalela zama-dinosaur zigcinwe kahle kakhulu; kuzo, singafunda okuningi ngempilo nokufa kwedayinaso.
Ososayensi bathi lezi zinsalela zibukeka sengathi zazinamasonto ambalwa nje ubudala naphezu kweqiniso lokuthi idayinaso yafa eminyakeni engaphezu kwezigidi ezingu-110 edlule. Lokhu kungenxa yezimo ezifanele ezigcinwe ngaphansi kwazo.
I-dinosaur - i-Borealopelta (okusho ukuthi "isihlangu saseNyakatho") iwuhlobo lwe-nodosaur eyayiphila ngesikhathi seCretaceous - yayingenye yeziningi ezafinyelela ukuphela kwayo ngenxa yokukhukhulwa kwamanzi ezikhukhula emfuleni ngenkathi ingena emfuleni. ulwandle.
Izikhali eziwugqinsi ezizungeza uhlaka lwamathambo lwenza isimo saso esihle. Imbozwe kusukela ekhanda kuye ozwaneni ngamapuleti anjenge-tile futhi, vele, i-patina empunga yezikhumba ezisamathambo.
UShawn Funk, owayesebenzisa imishini esindayo eMillennium Mine, uthole lokhu okumangazayo lapho umgodi wakhe wokumba ushaya into eqinile. Okwakubonakala njengamatshe ansundu ama-walnut empeleni kwakuyizinsalela ze-nodosaur eneminyaka eyizigidi eziyi-110 ubudala. Inyama edla uhlaza yayiphelele ngokwanele ukuthi ingxenye yangaphambili - kusukela empumulweni kuya ezinqulwini - ilulame.
UMichael Greshko we-National Geographic uthi: “Izinsalela zama- dinosaur ezidabukile ziyamangaza ukuzibona.
“Izinsalela zesikhumba ezisakhiwe zisavala izingcwecwe zezikhali ezinamachashaza ogebhezini lwekhanda lesilwane. Unyawo lwangaphambili lwesokudla luseceleni, amadijithi awo amahlanu atshekele phezulu. Ngingazibala izikali ematheni ayo,” kubhala uGreshko.
Ngenxa yokungcwatshwa kwayo ngokushesha ngaphansi kolwandle, idayinaso ibukeka njengoba yayinjalo ezigidini zeminyaka edlule. Ngokwezazi zesayensi yemivubukulo, iqiniso lokuthi izicubu zalo azizange zibole kodwa esikhundleni salokho zaba nezinsalela zamathambo liyivelakancane kakhulu.
Ngokungafani nesihlobo sayo esiseduze i-Ankylosauridae, ama-nodosaur awazange abe nama-shin-splitting till club. Kunalokho, yayigqoka izikhali ezihlabayo ukuze igweme izilwane ezizingelayo. I-dinosaur engamafidi angu-18 ubude, eyayiphila ngesikhathi seCretaceous, yayingabhekwa njengobhejane wesikhathi sayo.
