Tyler, S., Schilling, S., Hooge, M., & Bush, L.F. (Comp.) (2012) Turbellarian taxonomic database. Version 1.7. Accessed at: http://turbellaria.umaine.edu
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Tyler et al. (2012) note that the term 'Turbellaria' refers to the former class, but it is now known to be non-monophyletic, with former members now classified under Acoelomorpha (phylum Xenacoelomorpha) and within phylum Platyhelminthes
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