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Protozoan Evolution and Phylogeny

  1. John O Corliss

Published Online: 20 JUN 2001

DOI: 10.1038/npg.els.0001935



How to Cite

Corliss, J. O. 2001. Protozoan Evolution and Phylogeny. eLS. .

Author Information

  1. University of Maryland, College Park, Maryland, USA

Publication History

  1. Published Online: 20 JUN 2001

This is not the most recent version of the article. View current version (17 MAR 2014)


The study of the evolution and phylogeny of the groups comprising the Protozoa, the so-called lower eukaryotes, serves to elucidate the interrelationships between these, mostly unicellular, forms. They occupy an important ‘gap-bridging’ position on the overall ‘tree of life’ between the more primitive unicellular bacteria (all prokaryotes) and the higher eukaryotes (multicellular plants, fungi, and animals).


  • protozoa;
  • microorganisms;
  • evolution;
  • phylogeny;
  • trees of life;
  • cladograms