HIERARCHICAL CLASSIFICATION OF THE PHYLUM EOPHARYNGIA (CAVALIER-SMITH 1993)
| EUKARYA> EXCAVATA> EUEXCAVATA> EOPHARYNGIA |
EOPHARYNGIA LINKS
| The general organization of the following taxonomy was influenced by Cavalier-Smith (2003a), Patterson (1999), and Taylor (1999). |
CLASS TREPOMONADEA
Mainly diplomonads (paired karyomastigonts and feeding grooves); no golgi (text with tooltip) Golgi apparatus (also called dictyosome) is an internal membrane system of stacked flattened sacs. They occur in nearly all eukaryotes and are involved in storing and secreting cellular products. ; some with cytoplasmic suckers and internal ribbon-like microtubular flagellar roots.
- ORDER DISTOMONATIDA
- Cytostomes (text with tooltip) Cytostome (literally cell mouth) is a permanent opening into the cell into which food particles move and are incorporated into food vacuoles. lateral or posterior.
- Trepomonas, Hexamita, Spironucleus.
- ORDER GIARIIDA
- Cytostomes absent.
- Giardia, Octomitus.
- ORDER ENTEROMONADIDA
- Karyomastigonts not in pairs, cytostome in anterior part of cell.
- Enteromonas, Trimitus, Caviomonas.
CLASS RETORTOMONADEA
Four or six flagella inserted at the apical end of the cell; basal bodies directly associated with the surface of the nucleus. Recurrent flagellum lies in apical groove that is deep and pouch-like. A single order (RETORTOMONADIDA).
- Chilomastix, Retortomonas, Cochlosoma.
| LITERATURE CITED Baldauf, S. L. 2003a. The deep roots of eukaryotes. Science. 300 (5626): 1701-1703. Brugerolle, G., and J. P. Mignot. 1990. Retortamonadida. In: Margulis, L., J. O. Corliss, M. Melkonian, and D. J. Chapman, eds. 1990. Handbook of the Protoctista; the Structure, Cultivation, Habits and Life Histories of the Eukaryotic Microorganisms and Their Descendants Exclusive of Animals, Plants and Fungi. Jones and Bartlett Publishers. Boston. pp. 259-265. Cavalier-Smith, T. 2003a. Protist phylogeny and the high-level classification of Protozoa. European Journal of Protistology. 39:338-348. Dyer, B. D. 1990c. Parabasalia. In: Margulis, L., J. O. Corliss, M. Melkonian, and D. J. Chapman, eds. 1990. Handbook of the Protoctista; the Structure, Cultivation, Habits and Life Histories of the Eukaryotic Microorganisms and Their Descendants Exclusive of Animals, Plants and Fungi. Jones and Bartlett Publishers. Boston . pp. 252-258. [L] Grell, K. G. 1973. Protozoology. Springer-Verlag. New York. Kudo, R.R. 1966. Protozoology. 5th ed. Charles C. Thomas Publisher. Springfield. Lee, J. J. 1985. Order Retortamonadida. In: Lee, J.J., S.H. Hunter, and E.C. Bovee, eds. An Illustrated Guide to the Protozoa. Allen Press. Lawrence , Kansas. pp. 118-119. Patterson, D. J. 1999. The diversity of eukaryotes. American Naturalist. 154 (Suppl.): S96–S124. Taylor, F. J. R. 1999. Ultrastructure as a control for protistan molecular phylogeny. The American Naturalist. 154(supplement): S125-S136. Vickerman, K. 1990a. Diplomonadida. In: Margulis, L., J. O. Corliss, M. Melkonian, and D. J. Chapman, eds. 1990. Handbook of the Protoctista; the structure, cultivation, habits and life histories of the eukaryotic microorganisms and their descendants exclusive of animals, plants and fungi. Jones and Bartlett Publishers. Boston. pp. 200-210. |
| By Jack R. Holt. Last revised: 02/12/2012 |
