ɪt hæd ɐ pɹˈɪmᵻtˌɪv bˈækboʊn ænd pɹˈɑːbəbli lˈʊkt lˈaɪk ɐ smˈɔːl ˈiːl ɔːɹ lˈɑːɹdʒ wˈɜːm, lˈækɪŋ ˌɛni kˈaɪnd ʌv fˈɪnz ɛksˈɛpt fɔːɹ pɚhˈæps ɐ smˈɔːl wˈʌn ɔnðə tˈeɪl.
It had a primitive backbone and probably looked like a small eel or large worm, lacking any kind of fins except for perhaps a small one on the tail.