Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Nyanzvi inozivikanwa yezvicherwa Barnum Brown yakawana musoro weshumba yomudondo muna 1915 nokuda kweAmerican Museum of Natural History (AMNH 5836) muRwizi rweRed Deer rweAlberta, pedyo neSteveville. Akatsanangura muenzaniso wacho muna 1916 sorudzi rutsva, Prosaurolophus. Zita raBrown rakabva pakuenzanisa nemhando yeSaurolophus, yaakanga arondedzera muna 1912. Saurolophus aiva nomusoro wakafanana asi wakareba uye wakaita semakwati. Ganda romusoro racho rakanga rine muromo wakakuvadzwa uye rakanga ravakwazve risingazivi kuti rakanga rakareba zvikuru, asi zvisaririra zviri nani zvakakurumidza kuwanwa izvo zvakaratidza chimiro chechokwadi; chimwe chacho chinenge chizere skeleton neganda romusoro, zvakatsanangurwa naWilliam Parks muna 1924. Vanhu makumi maviri kusvika makumi maviri nevashanu vanozivikanwa nokuda kworudzi urwu, kubatanidza misoro minomwe ine zvimwe zvasara zvepfupa. Rudzi rwechipiri, P. blackfeetensis, rwakavakirwa pane muenzaniso muMuseum of the Rockies (MOR 454), iyo yakatsanangurwa nemumwe muongorori wezvinyorwa, Jack Horner. Muenzaniso uyu, uye zvisaririra zvevamwe vanhu vatatu kana kuti vana, zvakawanwa muGlacier County, Montana. Muchiitiko chino, zvisaririra zvakawanwa mumubhedha wemapfupa ezvisaririra zveProsorolophus, izvo zvinoratidza kuti mhuka dzacho dzakararama pamwe chete kwechinguvana. Bhendi racho rinotsanangurwa serinoratidza boka remhuka dzakaungana pedyo nenzvimbo ine mvura munguva yokusanaya kwemvura. Horner akasiyanisa marudzi maviri acho nemashoko omumusoro. Akatsanangura kuti P. blackfeetensis ine chiso chakareba, chakareba kupfuura cheP. maximus, chine mupendero unodzokera shure uchienda kumeso pakukura. Ongororo dzichangobva kuitwa dzakaratidza kuti kusiyana kwacho hakuna kukwana kutsigira marudzi maviri.  Mubvunzo: MuRwizi rupi umo Brown akawana musoro weshumba?
Rwizi rweRed Deer