Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: I kitea e Barnum Brown, kaiāwhina o te kaitiaki o te American Museum of Natural History, te kōwae tuatahi o te Tyrannosaurus rex i te rawhiti o Wyoming i te tau 1900. I kitea e Brown tetahi atu kopae i roto i te Whakaaturanga Hell Creek i Montana i te tau 1902, tata ki te 34 nga wheua kopae. I a ia e tuhi ana i taua wa, i kii a Brown "Ko te Quarry No. 1 kei roto i te rewharewha, te pupe, te humerus, e toru nga wheua me nga wheua e rua kaore i te mohiotia o te Dinosaur Carnivorous nui kaore i whakaahuatia e Marsh.... Kāre anō au kia kite i tētahi mea pēnei mai i te wā o te Cretaceous". Ko Henry Fairfield Osborn, te tumuaki o te American Museum of Natural History, i tapaina te ingoa tuarua o te kopae Tyrannosaurus rex i te tau 1905. I ahu mai te ingoa ā-iwi i ngā kupu Kariki τύραννος (tyrannos, ko te tikanga "tyrant") me σαῦρος (sauros, ko te tikanga "tākaka"). I whakamahia e Osborn te kupu Rātini rex, ko te tikanga "kingi", mo te ingoa motuhake. Na reira ka whakamaorihia te ingoa takirua ki te "tyrant lizard the king" "King Tyrant Lizard", e whakaatu ana i te rahi o te kararehe me te mana o etahi atu momo o taua wa. I tapaina e Osborn tetahi atu tauira ko Dynamosaurus imperiosus i roto i tetahi pepa i te tau 1905. I te tau 1906, i mohio a Osborn ko nga kopae e rua no te momo kotahi, ka kowhiria a Tyrannosaurus hei ingoa pai.  Pātai: He aha te tikanga o te kupu rex?
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