Me. Siddall et al., Problems determining the phylogenetic position of echiurans and pogonophorans with limited data, CLADISTICS, 14(4), 1998, pp. 401-410
Citations number
31
Categorie Soggetti
Biology
Journal title
CLADISTICS-THE INTERNATIONAL JOURNAL OF THE WILLI HENNIG SOCIETY
The phylogenetic position of Echiura and Pogonophora was recently reconside
red using 346 bp of elongation factor 1-alpha (EF-1 alpha). On the basis of
these results alone it was suggested that the relationships of Annelida be
reconsidered and that the systematics of the group changed accordingly. An
examination of these data, however, reveals difficulties in the original a
nalysis that relate to weighting and the relative inclusion or exclusion of
available characters and of taxa. Wholesale revision of the systematics of
Annelida or of groups therein awaits the availability of more comprehensiv
e work. (C) 1998 The Willi Hennig Society.