- Introduction to the Eukaryota, University of California Museum of Paleontology
- Eukarya (eukaryotes), Timothy Paustian, University of Wisconsin-Madison
- Introduction to Domain Eukarya, University of Wisconsin-Madison
- Eukaryote, Wikipedia
- The tree of eukaryotes, Patrick J. Keeling, Gertraud Burger, Dion G. Durnford, B. Franz Lang, Robert W. Lee, Ronald E. Pearlman, Andrew J. Roger, and Michael W. Gray, University of Arizona
- Tree of Eukaryotes, Molecular Systematics Group, University of Geneva, Switzerland
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