mˈoːɹ spˈɛsɪmənz ʌv dɹˈɛpɐnˌæspiz wʊd lˈeɪɾɚ biː ʌŋkˈʌvɚd ɪn tˈuː θˈaʊzənd fˈoːɹ, ɪnðə lˈoʊɚ dɛvˈoʊniən sˌʌbdᵻvˈɪʒən ʌv ðɪ ɑːɹdˈɛn mˈæsɪf ɪn bˈɛldʒəm ænd lˈʌksəmbˌɜːɡ, spəsˈɪfɪkli wɪðˌɪn ðɪ ɛmsˈiən ˈiːslɪŋ, baɪ ɐlˈeɪn blˈeɪk ænd hɪz tˈiːm.
More specimens of Drepanaspis would later be uncovered in 2004, in the Lower Devonian subdivision of the Ardenne Massif in Belgium and Luxembourg, specifically within the Emsian Oesling, by Alain Bleick and his team.