Paramecium caudatum is classified as a member of the Protozoa kingdom, according to the Integrated Taxonomic Information System. These organisms are further classified into the phylum Ciliophora and the class Ciliatea.
Paramecium caudatum is a one-celled organism that is visible with the help of a microscope, as stated by 101Science.com. This microorganism is shaped like a slipper and possesses two nuclei. Like other paramecium species, it is found in stagnant water and feeds on bacteria, algae and yeasts. It beats the multitude of tiny cilia on its membrane in order to move through the water. Paramecium caudatum is a model organism for genetics research.