sˌʌm ˌɪndᵻvˈɪdʒuːəlz ɑːɹ ɐsˈoʊsɪˌeɪɾᵻd wɪð mˈuːvmənt tɹˈeɪlz ɹᵻzˈɛmblɪŋ ðoʊz pɹədˈuːst baɪ mˈɑːdɚn sˈiː ɐnˈɛməniz sˈiːnɪdˈɛɹiə.
Some individuals are associated with movement trails resembling those produced by modern sea anemones (Cnidaria).