Hydrobiologia

, Volume 535, Issue 1, pp 341–356

Polychaete phylogeny based on morphological data – a comparison of current attempts

  • Thomas Bartolomaeus
  • Günter Purschke
  • Harald Hausen
Article

DOI: 10.1007/s10750-004-1847-5

Cite this article as:
Bartolomaeus, T., Purschke, G. & Hausen, H. Hydrobiologia (2005) 535: 341. doi:10.1007/s10750-004-1847-5

Abstract

Annelid phylogeny is one of the largest unresolved problems within the Metazoa. This is due to the enormous age of this taxon and also strongly influenced by the current discussion on the position of the Arthropoda, which traditionally is hypothesized to be the annelid sister taxon. Within the framework of recent discussions on the position of the Annelida, the ground pattern of this taxon is either a clitellate-like, parapodia-less dwelling organism or an organisms that resembles errant polychaetes in having parapodia and gills and probably being a predator. To solve this problem different attempts have been made in the past, cladistic analysis, scenario based plausibility considerations and a successive search for sister taxa base on isolated characters. These attempts are presented and critically discussed. There is at least strong support for the Annelida as wells as for several of its taxa above the level of traditional families; the monophyly of the Polychaeta, however, remains questionable.

Keywords

AnnelidaultrastructurephylogenyEchiuraClitellataPogonophora

Copyright information

© Springer 2005

Authors and Affiliations

  • Thomas Bartolomaeus
    • 1
  • Günter Purschke
    • 2
  • Harald Hausen
    • 1
  1. 1.Animal Systematics and EvolutionFree University BerlinBerlinGermany
  2. 2.Systematic Zoology, Department of BiologyUniversity of OsnabrueckOsnabrueckGermany