A comprehensive molecular phylogeny of Dalytyphloplanida (Platyhelminthes: Rhabdocoela) reveals multiple escapes from the marine environment and origins of symbiotic relationships. - Van Steenkiste, N.; Tessens, B.; Willems, W.; Backeljau, T.; Jondelius, U.; Artois, T. (PLoS ONE 8(3), 2013)