mesozoa การใช้

• The Orthonectida and Rhombozoa are also grouped into the Mesozoa.
• The branch contained only one group : Mesozoa.
• Likewise, Cavalier-Smith reclassified the protozoan phylum Mesozoa as an animal subkingdom.
• Some workers previously classified Mesozoa as the sole phylum of the lonely Cavalier-Smith argued that at least some of the mesozoans are in fact protistans, not animals.
• The kingdom Animalia was divided into four subkingdoms : Radiata ( phyla Porifera, Cnidaria, Placozoa, and Ctenophora ) Myxozoa, Mesozoa, and Bilateria ( all other animal phyla ).
• Although originally described in 1877 as a class, and sometimes characterized as an order of the phylum Mesozoa, recent study shows that orthonectids are quite different from the rhombozoans, the other group in Mesozoa.
• Although originally described in 1877 as a class, and sometimes characterized as an order of the phylum Mesozoa, recent study shows that orthonectids are quite different from the rhombozoans, the other group in Mesozoa.
• Complicating the issue is the 1997 work of Lynn Margulis ( revising an earlier model by Thomas Cavalier-Smith ) that placed the Cnidaria and Ctenophora alone in the branch Radiata within Eumetazoa . ( The latter refers to all the animals except the sponges, Trichoplax, and the still poorly understood Mesozoa . ) Neither grouping is accepted universally; however, both are commonly encountered in taxonomic literature.