The Protozoa are considered to be a subkingdom of the kingdom Protista, although in the classical system they were placed in the kingdom Animalia. More than 50,000 species have been described, most of which are free-living organisms; protozoa are found in almost every possible habitat. The fossil record in the form of shells in sedimentary rocks shows that protozoa were present in the Pre ...
Protozoa are single-celled organisms without cell walls. They are believed to be a part of the microbial world as they are unicellular and microscopic. There is a great deal to know about their classification, characteristics and more.
In some systems of biological classification, Protozoa is a high-level taxonomic group. When first introduced in 1818, Protozoa was erected as a taxonomic class, but in later classification schemes it was elevated to a variety of higher ranks, including phylum, subkingdom and kingdom.
Classification of Protozoa. All protozoal species are assigned to the kingdom Protista in the Whittaker classification. The protozoa are then placed into various groups primarily on the basis of how they move. The groups are called phyla (singular, phylum) by some microbiologists, and classes by others.
Classification of Protozoa: The classification of protozoa is mainly based on their means of locomotion. They are subdivided into the following four classes (or subphyla by some taxonomists). Species marked with asterisks (*) have been described in details with illustrations. 1.
A new revised classification of the Protozoa Article (PDF Available) in The Journal of protozoology 27(1):37-58 · March 1980 with 44,883 Reads How we measure 'reads'
An expert committee of the society of Proto-zoologists proposed a scheme of classification of the protozoa in 1980. The proposed classification recognized Protozoa as a sub-kingdom of the kingdom Protista and classified protozoa into six phyla. These are Sarcomastigophora, Labryinthomorpha, Apicomplexa, Microspora, Myxozoa and Ciliophora.
CLASSIFICATION OF PROTOZOA. Protozoa is classified by many based on different characters of protozoa but the classification of Protozoa is complicated and difficult The classification followed here is based on Hyman's classification.. Phylum Protozoa is divided into two subphyla: Sub-phylum Plasmodroma:. The Locomotory organelles are pseudopodia and flagella Nucleus is single or many but all ....
The kingdom includes both plant Protista (=Protophyta) and animal Protista (=Protozoa) CLASSIFICATION OF PROTOZOA. In modern classifications PROTOZOA is considered as a convenient name for unicellular animals and is not given any rank or status. SLEIGH’S SYSTEM OF CLASSIFICATION (Proposed by M.A. Sleigh, 1973 and given in Rupert & Barnes, 1994)
Essentially, protozoa are single-celled eukaryotes. This means that they are single celled organisms that have a nuclei as well as a number of other important organelles within the cytoplasm and enclosed by a membrane. They exist as free-living organisms or as parasites. This makes protozoa a diverse group of unicellular organisms, varying in shape and size.