mˈɛmbɚz ʌv dɹˈɛpɐnˌæspiz wɜː mˈoʊst lˈaɪkli nˌɛktoʊbˈɛnθɪk, ɔːɹ bˈɑːɾəm dwˈɛlɚz, ɐ kəŋklˈuːʒən bˈeɪst ˌɔn ɪts flˈæʔn̩d mɔːɹfˈɑːlədʒi ænd dˈoːɹsəl pəzˈɪʃənɪŋ ʌv ɪts ˈoːɹəl ˈoʊpənɪŋ.
Members of Drepanaspis were most likely nektobenthic, or bottom dwellers, a conclusion based on its flattened morphology and dorsal positioning of its oral opening.