Jamoytius was originally named by Errol White on the basis of two specimens (the generic name is a reference to J. A. Moy-Thomas) and, at the time, it was considered to be the most basal vertebrate known.
dʒæmˈɔɪɾɪəs wʌz ɚɹˈɪdʒɪnəli nˈeɪmd baɪ ˈɛɹɑːl wˈaɪt ɔnðə bˈeɪsɪs ʌv tˈuː spˈɛsɪmənz ðə dʒənˈɛɹɪk nˈeɪm ɪz ɐ ɹˈɛfɹəns tə dʒˈeɪ. ˈeɪ. mˈɔɪtˈɑːməs ænd, æt ðə tˈaɪm, ɪt wʌz kənsˈɪdɚd təbi ðə mˈoʊst bˈeɪsəl vˈɜːɾɪbɹˌeɪt nˈoʊn.