World Register of Marine Species (WoRMS)
Bursalia Jondelius, Wallberg, Hooge & Raikova, 2011
Tyler, S., Artois, T.; Schilling, S.; Hooge, M.; Bush, L.F. (eds) (2006-2026). World List of turbellarian worms: Acoelomorpha, Catenulida, Rhabditophora. Bursalia. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=880130 on 2026-08-25
Jondelius, U.; Wallberg, A.; Hooge, M.; Raikova, O. I. (2011). How the Worm Got its Pharynx: Phylogeny, Classification and Bayesian Assessment of Character Evolution in Acoela. Systematic Biology. 60(6): 845-871.
Jondelius, Wallberg, Hooge & Raikova, 2011