ɪt lˈɪvd ɪnðə plˈeɪnz ʌv nˈɔːɹθ ɐmˈɛɹɪkə wɪð fˈɑːsəlz fˈaʊnd ɪn sˈæskɐtʃˌuːən, kˈænədə ænd kˌɑːlɚɹˈɑːdoʊ, mɑːntˈænə, nəbɹˈæskə, sˈaʊθ dɐkˈoʊɾə, nˈɔːɹθ dɐkˈoʊɾə, waɪˈoʊmɪŋ, ænd ˈɔːɹɪɡən ɪnðə juːnˈaɪɾᵻd stˈeɪts.
It lived in the plains of North America with fossils found in Saskatchewan, Canada and Colorado, Montana, Nebraska, South Dakota, North Dakota, Wyoming, and Oregon in the United States.