telonema telonema telonema is a genus of single-celled organisms. telonema scientific classification domain: eukaryota kingdom: incertae sedis (unranked): hacrobia (unranked): cryptista class: telonemea order: telonemida family: telonemidae genus: telonemagriessmann, 1913 type species telonema subtilegriessmann, 1913 species t. antarcticum thomsen 2005 t. subtile greissmann 1913 some sources group telonema within the cryptomonads-haptophytes assemblage. it is sometimes assigned to a unique phylum, telonemia. although telonema is within the eukaryota domain, it does not have any close relations to other organisms within that domain . however, it was once thought telonema was closely related to photosynthetic cryptomonads, or stramenopiles and centrohelids, but there was not enough data to prove this. after a study of 127 genes across 72 species, they found that telonema subtilis could be related to alveolate and rhizaria. species two species are recognized by algaebase as of 2013, telonema subtile and t. antarcticum. the latter was described in 2005. other sources call the former telonema subtilis.