List of animal classes

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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 e.g, 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.

Unknown phylum[edit]

Acanthocephala (thorny-headed worms)[edit]

Acoelomorpha (simple soft-bodied flatworms)[edit]

Annelida (segmented worms)[edit]

Arthropoda (arthropods: insects, crustaceans, arachnids, centipedes, and millipedes)[edit]

Chelicerata[2][edit]

Crustacea[3][edit]

Hexapoda[9][edit]

Myriapoda[10][edit]

Brachiopoda ("lamp shells")[edit]

Bryozoa (moss animals)[edit]

Chaetognatha (arrow worms)[edit]

Chordata (vertebrates, tunicates, and lancelets)[edit]

Cephalochordata[edit]

Tunicata[edit]

Vertebrata[edit]

Agnatha[edit]

Cyclostomata[edit]

Gnathostomata[edit]

Tetrapoda[edit]
Osteichthyes[edit]

Cnidaria (marine stinging animals)[edit]

Cycliophora (tiny marine animals)[edit]

Dicyemida (rhombozoa)[edit]

  • Dicyemida

Echinodermata (starfish, sea urchins, sand dollars, sea lilies, and others)[edit]

Crinozoa[edit]

Asterozoa[edit]

Echinozoa[edit]

Entoprocta[edit]

  • Entoprocta

Gastrotricha (hairybacks)[edit]

  • Gastrotricha

Gnathostomulida (jaw worms)[edit]

  • Gnathostomulida

Hemichordata[edit]

Kinorhyncha (mud dragons)[edit]

Loricifera[edit]

Mollusca (mollusks)[edit]

Nematoda (roundworms)[edit]

Nematomorpha (horsehair worms)[edit]

Nemertea (ribbon worms)[edit]

Onychophora (velvet worms)[edit]

Orthonectida[edit]

Placozoa[edit]

Platyhelminthes (flatworms)[edit]

Porifera (sponges)[edit]

Priapulida (priapulid worms)[edit]

Rotifera (rotifers)[edit]

Tardigrada (tardigrades, water bears, or moss piglets)[edit]

Xenoturbellida[edit]

References[edit]

  1. ^ Ramel, Gordon. "The Annelids (Phylum Annelida)". www.earthlife.net.
  2. ^ Integrated Taxonomic Information System. "ITIS Standard Report Page: Chelicerata". www.itis.gov.
  3. ^ Integrated Taxonomic Information System. "ITIS Standard Report Page: Crustacea". www.itis.gov.
  4. ^ Regents of the University of California. "Introduction to Brachiopoda". www.ucmp.berkeley.edu.
  5. ^ https://www.uni-ulm.de/fileadmin/website_uni_ulm/nawi.biodok/publikationen/2011_Olesen_etal_Cephalocarida-k.pdf
  6. ^ Conlan, Kathleen E.; Bousfield, Edward. "Malacostracan | crustacean". www.britannica.com.
  7. ^ http://atiniui.nhm.org/pdfs/3839/3839.pdf
  8. ^ http://atiniui.nhm.org/pdfs/3839/3839.pdf
  9. ^ "ITIS Standard Report Page: Hexapoda". www.itis.gov. Integrated Taxonomic Information System.
  10. ^ "ITIS Standard Report Page: Myriapoda". www.itis.gov. Integrated Taxonomic Information System.