The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by no means be considered complete and authoritative and should be used carefully.
Acanthocephala (thorny-headed worms) edit
- Archiacanthocephala
- Eoacanthocephala
- Palaeacanthocephala (ancient thornheads)
- Polyacanthocephala
Acoelomorpha (simple soft-bodied flatworms) edit
Annelida (segmented worms) edit
- Clitellata (earthworms)
- Polychaeta (bristle worms)
- Sipuncula (peanut worms)
Arthropoda (arthropods: insects, crustaceans, arachnids, centipedes, and millipedes) edit
Chelicerata[1] edit
- Arachnida (spiders, scorpions, and kin)
- Xiphosura (horseshoe crabs)
- Pycnogonida (sea spiders)
Crustacea[2] edit
- Branchiopoda (fairy shrimp, tadpole shrimp, water fleas, and clam shrimp)[3]
- Cephalocarida (horseshoe shrimp)[4]
- Pentastomida (tongue worms)
- Branchiura (fish lice)
- Mystacocarida
- Copepoda
- Ostracoda (seed shrimp)[5]
- Malacostraca (crabs, lobsters, crayfish, krill, various shrimp, woodlice, and kin)[6]
- Thecostraca (barnacles)
- Remipedia
Hexapoda[7] edit
- Entognatha (coneheads, two-pronged bristletails and springtails)
- Insecta (insects)
Myriapoda[8] edit
Brachiopoda ("lamp shells") edit
Bryozoa (moss animals) edit
Chaetognatha (arrow worms) edit
Chordata (vertebrates, tunicates, and lancelets) edit
Cephalochordata edit
- Leptocardii (lancelet)
Tunicata edit
- Appendicularia (larvaceans)
- Ascidiacea (sea squirts, paraphyletic with respect to Thaliacea)
- Thaliacea (salps, pyrosomes, and doliolids)
Vertebrata edit
Agnatha edit
Cyclostomata edit
- Myxini (hagfish)
- Petromyzontida (lamprey)
Gnathostomata edit
- Chondrichthyes (cartilaginous fish: chimeras, sharks and rays)
- Osteichthyes
- Actinopterygii (ray-finned fish, which includes most familiar bony fish)
- Sarcopterygii
Cnidaria (marine stinging animals) edit
- Octocorallia
- Hexacorallia
- Ceriantharia
- Cubozoa (box jellyfish)
- Hydrozoa (hydroids)
- Myxozoa (marine parasites)
- Scyphozoa (true jellyfish)
- Staurozoa (stalked jellyfish)
- Polypodiozoa (marine parasites)
Cycliophora (tiny marine animals) edit
Dicyemida (rhombozoa) edit
- Dicyemida
Echinodermata (starfish, sea urchins, sand dollars, sea lilies, and others) edit
Crinozoa edit
- Crinoidea (sea lilies and feather stars)
Asterozoa edit
- Asteroidea (star fish)
- Ophiuroidea (brittle stars)
Echinozoa edit
- Echinoidea (sea urchins)
- Holothuroidea (sea cucumbers)
Entoprocta edit
Gastrotricha (hairybacks) edit
Gnathostomulida (jaw worms) edit
Hemichordata edit
- Enteropneusta (acorn worms)
- Pterobranchia
Kinorhyncha (mud dragons) edit
Loricifera edit
Mollusca (mollusks) edit
- Aplacophora
- Bivalvia (clams, mussels, scallops, and kin)
- Cephalopoda (octopuses, squids and cuttlefish)
- Gastropoda (snails and slugs)
- Monoplacophora
- Polyplacophora (chitons, or sea cradles)
- Scaphopoda (tusk shells)
Micrognathozoa edit
Nematoda (roundworms) edit
Nematomorpha (horsehair worms) edit
Nemertea (ribbon worms) edit
Onychophora (velvet worms) edit
Orthonectida edit
Placozoa edit
Platyhelminthes (flatworms) edit
- Cestoda (tapeworms and relatives)
- Monogenea
- Trematoda (flukes)
- Turbellaria (e.g. Dugesia)
Porifera (sponges) edit
- Calcarea (calcareous sponges)
- Demospongiae
- Hexactinellida (glass sponges)
- Homoscleromorpha
Priapulida (priapulid worms) edit
Rotifera (rotifers) edit
Tardigrada (tardigrades, water bears, or moss piglets) edit
Xenoturbellida edit
References edit
- ^ Integrated Taxonomic Information System. "ITIS Standard Report Page: Chelicerata". www.itis.gov.
- ^ Integrated Taxonomic Information System. "ITIS Standard Report Page: Crustacea". www.itis.gov.
- ^ Regents of the University of California. "Introduction to Brachiopoda". www.ucmp.berkeley.edu.
- ^ "Archived copy" (PDF). Archived from the original (PDF) on 2014-10-06. Retrieved 2014-10-03.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ "Archived copy" (PDF). Archived from the original (PDF) on 2013-05-12. Retrieved 2014-10-03.
{{cite web}}: CS1 maint: archived copy as title (link) - ^ Conlan, Kathleen E.; Bousfield, Edward. "Malacostracan | crustacean". www.britannica.com.
- ^ "ITIS Standard Report Page: Hexapoda". www.itis.gov. Integrated Taxonomic Information System.
- ^ "ITIS Standard Report Page: Myriapoda". www.itis.gov. Integrated Taxonomic Information System.
- ^ a b Tessler, Michael; Neumann, Johannes S.; Kamm, Kai; Osigus, Hans-Jürgen; Eshel, Gil; Narechania, Apurva; Burns, John A.; DeSalle, Rob; Schierwater, Bernd (2022-12-08). "Phylogenomics and the first higher taxonomy of Placozoa, an ancient and enigmatic animal phylum". Frontiers in Ecology and Evolution. 10. doi:10.3389/fevo.2022.1016357.