haʊˈɛvɚ, ˈʌðɚ sˈaɪəntɪsts ɑːɹ nˌɑːt kənvˈɪnst ðiːz ˈɜːli kˈæmbɹiən fˈɑːsəlz ʃˈoʊ klˈɪɹ sˈaɪnz ʌvðə tˈoːɹʃən kˌæɹɪktɚɹˈɪstɪk ʌv mˈɑːdɚn ɡˈæstɹəpˌɑːdz, ðæt twˈɪsts ðɪ ɪntˈɜːnəl ˈɔːɹɡənz sˌoʊ ðɪ ˈeɪnʌs lˈaɪz əbˌʌv ðə hˈɛd.
However, other scientists are not convinced these Early Cambrian fossils show clear signs of the torsion characteristic of modern gastropods, that twists the internal organs so the anus lies above the head.