ðə fˈɜːst fˈɑːsəlz ʌvðə dʒˈɛnəs dɹˈɛpɐnˌæspiz, saɪəntˈɪfɪkli nˈoʊn æz dˈiː. dʒˌɛmjuːˌɛndənˈɛnsɪs ʌv ʃlˈuːɾɚ, wɜː fˈaʊnd ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd ˈeɪɾi sˈɛvən fɹʌmðə dʒˈɛmuːndən slˈeɪt ɪnðə hˈʌnsɹuːk lˈædʒɚstˌɛt ʌv ɹˈaɪnlənd, dʒˈɜːməni ænd wʌz fˈɜːst dᵻskɹˈaɪbd baɪ klˈɛmɛnz ˈɔːɡəst ʃlˈuːɾɚ.
The first fossils of the genus Drepanaspis, scientifically known as D. gemuendenensis of Schlüter, were found in 1887 from the Gemünden slate in the Hunsrück lagerstätte of Rhineland, Germany and was first described by Clemens August Schlüter.