hˈʌmboʊldtˌɪtʃθiz kˈɜːʃbɔːmi fˈɔːɹmɚli dʒˈɛnəs ˌɛlaɪsˈɛlə fɹʌm ˌʌpɚ mɪˈoʊsiːn ʌv bəlˈɪviə ɪz ðɪ ˈoʊnli fˈɑːsəl dʒˈɪmnətˌɪfɔːɹm.
Humboldtichthys kirschbaumi (formerly genus Ellisella) from Upper Miocene of Bolivia is the only fossil gymnotiform.