ðɪs spˈiːsiːz, ɐlˈɔŋ wɪð ˈʌðɚz ɪnðə fˈæmɪli, hæv tʃˈeɪndʒd lˈɪɾəl ˌoʊvɚ ðə pˈæst tˈuːhˈʌndɹɪd mˈɪliən jˈɪɹz, ðˈʌs ðeɪ ɹˌɛpɹᵻzˈɛnt "lˈɪvɪŋ fˈɑːsəlz".
This species, along with others in the family, have changed little over the past 200 million years, thus they represent "living fossils".