ɔːlðˈoʊ mˈoʊst hˈɛlʃənˌɛlɪd fˈɑːsəlz ɑːɹ ˈoʊnli ɐ fjˈuː mˈɪlɪmˌiːɾɚz lˈɔŋ, spˈɛsɪmənz ɐ fjˈuː sˈɛntɪmˌiːɾɚz lˈɔŋ hæv ˈɔːlsoʊ bˌɪn fˈaʊnd, mˈoʊst wɪð mˈoːɹ lˈɪmpɪtlˈaɪk ʃˈeɪps.
Although most helcionellid fossils are only a few millimeters long, specimens a few centimeters long have also been found, most with more limpet-like shapes.