List of animal classes
The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 24 phyla in this list (the phyla Entoprocta, Gastrotricha, Gnathostomulida, Loricifera, Micrognathozoa, Onychophora, Orthonectida and Phoronida contain no classes). 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.
Annelida (segmented worms)
- Polychaeta (bristle worms, paraphyletic with respect to Clitellata and Sipuncula)
- Clitellata (earthworms, leeches)
- Sipuncula (peanut worms)
Arthropoda (insects, crustaceans, arachnids, centipedes and others)
Source:[1]
- Arachnida (spiders, scorpions, and kin)
- Merostomata (horseshoe crabs)
- Pycnogonida (sea spiders)
Source:[2]
Source:[3]
- Ostracoda (seed shrimp)[4]
- Mystacocarida
- Ichthyostraca (tongue worms and fish lice)
- Copepoda
- Malacostraca (crabs, lobsters, crayfish, krill, various shrimp, woodlice, and kin)[5]
- Tantulocarida
- Thecostraca (barnacles)
- Cephalocarida (horseshoe shrimp)[6]
- Branchiopoda (fairy shrimp, tadpole shrimp, water fleas, and clam shrimp)[7]
- Remipedia
Source:[8]
- Entognatha (coneheads, two-pronged bristletails and springtails. paraphyletic with respect to insects)
- Insecta (insects)
Brachiopoda (lamp shells)
Bryozoa (moss animals)
Chaetognatha (arrow worms)
Chordata (vertebrates, tunicates, and lancelets)
- Leptocardii (lancelet)
- Appendicularia (larvaceans)
- Ascidiacea (sea squirts, paraphyletic with respect to Thaliacea)
- Thaliacea (salps, pyrosomes, and doliolids)
Cyclostomata (jawless fish)
- Myxini (hagfish)
- Petromyzontida (lamprey)
Gnathostomata (jawed vertebrates)
- Chondrichthyes (cartilaginous fish: chimeras, sharks and rays)
- Osteichthyes
- Actinopterygii (ray-finned fish, which includes most familiar bony fish)
- Sarcopterygii
Cnidaria (marine stinging animals)
Anthozoa (corals and sea anemones)
- Cubozoa (box jellyfish)
- Hydrozoa (hydroids)
- Scyphozoa (true jellyfish)
- Staurozoa (stalked jellyfish)
Endocnidozoa (marine parasites)
Ctenophora (comb jellies)
- Tentaculata
- Nuda (beroids)
Cycliophora (tiny marine animals)
Dicyemida (rhombozoa)
- Rhombozoa
Echinodermata (sea stars, sea urchins, sand dollars, sea lilies, and others)
- Crinoidea (sea lilies and feather stars)
- Asteroidea (sea star)
- Ophiuroidea (brittle stars)
- Echinoidea (sea urchins)
- Holothuroidea (sea cucumbers)
- Enteropneusta (acorn worms)
- Pterobranchia
- Planctosphaeroidea
Kinorhyncha (mud dragons)
Mollusca (mollusks)
- Solenogastres
- Caudofoveata
- Bivalvia (clams, cockles, mussels, oysters and scallops)
- Cephalopoda (octopuses, squids, cuttlefish and nautiluses)
- Gastropoda (snails and slugs)
- Monoplacophora
- Polyplacophora (chitons, or sea cradles)
- Scaphopoda (tusk shells)
Nematoda (roundworms)
Nematomorpha (horsehair worms)
Nemertea (ribbon worms)
Platyhelminthes (flatworms)
- Catenulida
- Turbellaria (e.g. Dugesia, paraphyletic with respect to Neodermata)
Neodermata (parasitic worms)
Porifera (sponges)
- Calcarea (calcareous sponges)
- Demospongiae
- Hexactinellida (glass sponges)
- Homoscleromorpha
Priapulida (priapulid worms)
Rotifera (rotifers)
Acanthocephala (thorny-headed worms)
Source:[10]
- Archiacanthocephala
- Eoacanthocephala
- Palaeacanthocephala (ancient thornheads)
- Polyacanthocephala
Tardigrada (tardigrades, water bears, or moss piglets)
Acoelomorpha (simple soft-bodied flat worms, paraphyletic)
References
- ^ Integrated Taxonomic Information System. "ITIS Standard Report Page: Chelicerata". www.itis.gov.
- ^ "ITIS Standard Report Page: Myriapoda". www.itis.gov. Integrated Taxonomic Information System.
- ^ Integrated Taxonomic Information System. "ITIS Standard Report Page: Crustacea". www.itis.gov.
- ^ "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.
- ^ "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) - ^ Regents of the University of California. "Introduction to Brachiopoda". www.ucmp.berkeley.edu.
- ^ "ITIS Standard Report Page: Hexapoda". 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.
- ^ Shimek, Ronald (January 2006). "Nano-Animals, Part I: Rotifers". Reefkeeping.com. Retrieved July 27, 2008.