Jimenez-Guri E, Paps J, Garcia-Fernandez J, Salo E (2006), "Hox and ParaHox genes in Nemertodermatida, a basal bilaterian clade", Int. J. Dev. Biol., 50 (8): 675–9, doi:10.1387/ijdb.062167ej, PMID17051477.
Hooge, M. D.; Tyler, S. (2005). "New tools for resolving phylogenies: a systematic revision of the Convolutidae (Acoelomorpha, Acoela)". Journal of Zoological Systematics and Evolutionary Research. 43 (2): 100–113. doi:10.1111/j.1439-0469.2005.00301.x. ISSN0947-5745.
Jimenez-Guri E, Paps J, Garcia-Fernandez J, Salo E (2006), "Hox and ParaHox genes in Nemertodermatida, a basal bilaterian clade", Int. J. Dev. Biol., 50 (8): 675–9, doi:10.1387/ijdb.062167ej, PMID17051477.
Hooge, M. D.; Tyler, S. (2005). "New tools for resolving phylogenies: a systematic revision of the Convolutidae (Acoelomorpha, Acoela)". Journal of Zoological Systematics and Evolutionary Research. 43 (2): 100–113. doi:10.1111/j.1439-0469.2005.00301.x. ISSN0947-5745.