found: ITIS, Jan. 6, 2017(Gastrotricha. Taxonomic rank: phylum. Common name: gastrotrichs. Superphylum Platyzoa, Infrakingdom Protostomia, Subkingdom Bilateria, Kingdom Animalia)
found: NCBI taxonomy browser, Jan. 6, 2017(Gastrotricha (gastrotrichs). Rank: phylum. Lineage: cellular organisms; superkingdom Eukaryota; [no rank] Opisthokonta; kingdom Metazoa; [no rank] Eumetazoa; [no rank] Bilateria; [no rank] Protostomia; [no rank] Lophotrochozoa)
found: Britannica online, Jan. 6, 2017(Gastrotrich, any of about 500 species of the phylum Gastrotricha, a group of microscopic aquatic invertebrates that live in the spaces between sand grains and soil particles and on the outer coverings of aquatic plants and animals. They occur in salt water and freshwater and also on sandy seashores; Gastrotrichs were formerly placed within a phylum of animals called the Aschelminthes. The similarities among aschelminths are now understood to be the result of independent evolution in comparable habitats rather than close evolutionary relationships. Many aschelminth groups have been raised to the level of independent phyla)
