ɪn tˈuː θˈaʊzənd twˈɛnti wˈʌn ɐ stˈʌdi ðæt nˈeɪmd ɐ nˈuː spˈiːsiːz, ˈɪsi sˈɑːnɛk, ɹᵻkˈʌvɚd ðɪs spˈiːsiːz æz ðə sˈɪstɚ tˈæksən ʌv plˌeɪɾəsˈɔːɹəs.
In 2021 a study that named a new species, Issi saaneq, recovered this species as the sister taxon of Plateosaurus.