Contributions to Zoology, 73 (1/2) (2004)

Towards a phylogeny of the Metazoa: evaluating alternative phylogenetic positions of Platyhelminthes, Nemertea, and Gnathostomulida, with a critical reappraisal of cladistic characters

Ronald A. Jenner

University Museum of Zoology, University of Cambridge , Downing Street, Cambridge CB2 3EJ, United Kingdom

Keywords: Platyhelminthes, Nemertea, Gnathostomulida, Metazoa, Bilateria, phylogeny, morphological cladistics, 18S rDNA, total evidence