ðɪ ˈoʊldɪst fˈɑːsəl ʌvðə ɡɹˈuːp ɪz mˈeɪlətɹˌɪtʃoʊsɹə, wˌɪtʃ ɪz nˈoʊn fɹʌmðɪ ˈɜːli tə lˈeɪt dʒjʊɹɹˈæsɪk ʌv juːɹˈeɪʒə.
The oldest fossil of the group is Mailotrichocera, which is known from the Early to Late Jurassic of Eurasia.