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Ohkuma M, Iida T, Ohtoko K, et al. Molecular phylogeny of parabasalids inferred from small subunit rRNA sequences, with emphasis on the Hypermastigea. Mol. Phylogenet. Evol. June 2005, 35 (3): 646–55. PMID 15878133. doi:10.1016/j.ympev.2005.02.013.
Yubuki, Naoji; Céza, VÍT; Cepicka, Ivan; Yabuki, Akinori; Inagaki, Yuji; Nakayama, Takeshi; Inouye, Isao; Leander, Brian S. Cryptic Diversity of Free-Living Parabasalids, Pseudotrichomonas keilini and Lacusteria cypriaca n. G., n. Sp., as Inferred from Small Subunit rDNA Sequences. Journal of Eukaryotic Microbiology. 2010, 57 (6): 554–61. PMID 20880033. doi:10.1111/j.1550-7408.2010.00509.x.
Carpenter KJ, Keeling PJ. Morphology and phylogenetic position of Eucomonympha imla (Parabasalia: Hypermastigida). J. Eukaryot. Microbiol. 2007, 54 (4): 325–32. PMID 17669157. doi:10.1111/j.1550-7408.2007.00263.x.