ISSN:
1573-5117
Keywords:
Platyhelminthes
;
phylogeny
;
DNA
;
ultrastructure
;
protonephridia
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
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.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00036359
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