Subseries Pseudocoelomata Schimkewtsch 1891 

 Superphylum Aschelminthes Grobben 1909 

 Phylum Rotatoria Ehrenberg 1838 

 Class Seisonidea Wesenberg-Lund 1899 

 Class Bdelloidea Hudson & Gosse 1889 

 Class Monogononta Ehrenberg 1832 

 Order Ploima Hudson & Gosse 1889 

 Order Flosculariacea Harring 1913 

 Order Collothecacea Harring 1913 

 Phylum Gastrotricha Metchnikof 1864 

 Order Macrodasyoidea Remane 1926 

 Order Chaetonotoidea Remane 1926 

 Phylum Echinodera Zehnka 1928 (Kinorhyncha Reinhard 1887) 

 Phylum Nematomorpha Vejovsky 1866 

 Class Gordididea Orthepp 1924 

 Class Nectonematoidea Rauther 1930 

 Phylum Nematoidea Rudolphi 1808 



Class Phasmidia Qiitwood & Chitwood 1933 

 Order Rhabditida Chitwood 1933 

 Suborder Rhabditata Chitwood 1933 

 Suborder Ascaridata Skrjabin 1915 

 Suborder Strongylata Railliet & Henry 1913 

 Order Spirurida Chitwood 1933 



Suborder Spirurata Railhet & Henry 1913 

 Suborder Camallanta Chitwood 1936 

 Class Aphasmidia Chitwood & Chitwood 1933 

 Order Enoplata Chitwood 1933 

 Suborder Enoplata Filipjev 1929 

 Suborder Dorylaimata Chitwood 1933 

 Suborder Dioctophymata Skrjabin 1923 

 Order Chromadorida Chitwood 1933 

 Suborder Monohysterata FiHpjev 1929 

 Suborder Desmoscolecata Filipjev 1929 

 Suborder Chromadorata Filipjev 1929 

 Phylum Tardigrada Spallanzani 1726 

 Class Heterotardigrada Marcus 1927 

 Order Arthrotardigrada Marcus 1927 

 Order Echiniscoidea Richters 1926 

 Class Eutardigrada Richters 1926 

 Subseries Eucoelomata Schimkewitsch 1891 

 Phylum Chaetognatha Leuckart 1854 

 Phylum Entoprocta Nitsche 1870 

 Phylum Bryozoa Ehrenberg 1831 

 Class Gymnolaemata Allman 1856 

 Order Cyclostomata Busk 1852 

 Suborder Tubipora Hagenow 1851 

 Suborder Cerioporina Hagenow 1851 

 Suborder Ceramoporoidea Bassler 1913 

 Suborder Hedrelloidea Bassler 1934 

 Order Trepostomata Ulrich 1883 

 Order Cryptostomata Vine 1883 

 Order Ctenostoma Busk 1852 



[9] 



