i roto i te 1906, i kitea e te American Museum o Natural History haerenga arahina e paleontologist Barnum Brown te tauira momo o Ankylosaurus magniventris (AMNH 5895) i roto i te Hell Creek Whakaputanga, tata Gilbert Creek, Montana. te tauira (kua kitea e te kaiwhiwhi Pita Kaisen) ngā o te wahi o runga o te kopu, e rua niho, wahi o te pokohiwi whitiki, cervical, muri, me te taiawhio, whatianga, me te neke atu i te toru tekau osteoderms. Brown pūtaiao whakaahuatia te kararehe i roto i 1908; te ingoa hapu e ahu mai i te kupu Kariki αγκυλος / ankulos ('ngaro' ranei 'ngaro'), e pā ana ki te wā hauora ankylosis, te pakeke whakaputaina e te whakakotahitanga o te wheua i roto i te kopu, me te tinana, me te σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος / σαυρος /
te puku nui