Abstract
DNA studies of 23 taxa (20 platyhelminths, 1 nemertean, Homo and Artemia) and electron-microscopic studies of the protonephridia of many platyhelminths (supported by some additional ultrastructural data) have led to the following conclusions: the Neodermata are monophyletic; Temnocephalida and Dalyelliida form one clade and are not the ‘primitive’ sister group of the Neodermata; Gyrocotylidea, Amphilinidea and Eucestoda form one monophylum; Pterastericolidae and Umagillidae are dalyelliids and not the sister group of the Neodermata; and Proseriata are unlikely to be closely related with the Tricladida. A large taxon consisting of the Proseriata and some other ‘turbellarians’ may represent the sister group of the Neodermata.
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Rohde, K., Johnson, A.M., Baverstock, P.R., Watson, N.A. (1995). Aspects of the phylogeny of Platyhelminthes based on 18S ribosomal DNA and protonephridial ultrastructure. In: Cannon, L.R.G. (eds) Biology of Turbellaria and some Related Flatworms. Developments in Hydrobiology, vol 108. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0045-8_6
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DOI: https://doi.org/10.1007/978-94-011-0045-8_6
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