01 Protozoa Goldfuss, 1818 - protozoans
02 Phylum Porifera Grant, 1836 - sponges
03 Phylum †Archaeocyatha Vologdin, 1937 see Class Archaeocyatha Bornemann, 1884
04 Phylum Coelenterata Leuckart, 1847 see Infrakingdom Coelenterata Leuckart, 1847
05 Phylum Ctenophora Eschscholtz, 1829 - comb jellies
06 Phylum Echinodermata Bruguière, 1789 - echinoderms
07 Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
08 Phylum Nematoda Gegenbaur, 1859 - round worms
09 Phylum Acanthocephala Kohlreuther, 1771 - acanthocephalans see [unranked] Acanthocephala Kohlreuther, 1771
10 Phylum Mesozoa van Beneden, 1876 see [unranked] Mesozoa van Beneden, 1876
11 Phylum Nematomorpha Vejdovsky, 1886 - horsehair worms
12 Phylum Nemertinea Schultze see Phylum Nemertini
13 Phylum Annelida Lamarck, 1809 - segmented worms
14 Phylum Rotifera Cuvier, 1798 - rotifers see Phylum Syndermata Ahlrichs, 1995
15 Phylum Cephalorhyncha Malakhov, 1980
16 Phylum Chaetognatha Leuckart, 1854 - chaetognaths
17 Phylum †Conulariida Miller & Gurley, 1896 see Class Conulata Moore & Harrington, 1956
18 Phylum Cycliophora Funch & Kristensen, 1995 - cycliophorans
19 Phylum Echiura Sedgwick, 1898 - spoon worms, echiurans see Class Echiura
20 Phylum Gastrotricha Metschnikoff, 1864 - gastrotrichs
21 Phylum Gnathostomulida Ax, 1956 - gnathostomulids
22 Phylum Kinorhyncha Reinhard, 1887 - kinorhynchs
23 Phylum Lobopodia Snodgrass, 1938 - lobopodians
24 Phylum Loricifera Kristensen, 1983 - loriciferans
25 Phylum Placozoa Grell, 1971
26 Phylum Pogonophora Johansson, 1937 - beard worms see Family Siboglinidae Caullery, 1914
27 Phylum Priapulida Delage & Hérouard, 1897 - priapulids
28 Phylum Sipuncula Rafinesque, 1814 - peanut worms see Class Sipuncula
29 Phylum Vestimentifera - vestimentiferans see Class Vestimentifera
30 Phylum †Conodonta Eichenberg, 1930 see Subclass Conodonta Eichenberg, 1930
31 †Fossil Miscellanea
32 Phylum Brachiopoda Duméril, 1806 - brachiopods
33 Phylum Bryozoa Ehrenberg, 1831 - bryozoans
34 Phylum Entoprocta Nitsche, 1869 - entoprocts
35 Phylum Mollusca Linnaeus, 1758 - molluscs
36 Phylum Onychophora Grube, 1853 - velvet worms
37 Phylum Pentastomida (Diesing, 1836) - pentastomids see Subclass Pentastomida Diesing, 1836
38 Phylum Arthropoda Siebold, 1848 - arthropods
39 Phylum Hemichordata Bateson, 1885 - hemichordates
40 Phylum Phoronida Hatschek, 1888 - phoronids
41 †Petalonamae Pflug, 1970 see Class Petalonamae Pflug, 1970
42 Class †Graptolithina Bronn, 1849
43 Phylum Chordata Bateson, 1885 - chordates