Directory Sites

  • Phylum Chordata

    Brief introduction to the chordates, defined as organisms that possess a structure called a notochord, at least during some part of their development. Includes links to information about subgroups and representative animals.

    animaldiversity.ummz.umich.edu

  • Gnathostomata

    Philippe Janvier's article about the jawed vertebrates in the Tree of Life website.

    ag.arizona.edu

  • Subphylum Vertebrata

    What makes a vertebrate a vertebrate? They have more in common than a backbone. Find out more in this site from the Animal Diversity Web.

    animaldiversity.ummz.umich.edu

  • Vertebrata

    Introduction to the vertebrates and their classification, including the Hyperoartia, or lampreys, and the Gnathostomata, or jawed vertebrates.

    tolweb.org

  • Chordata

    Overview of the taxonomy of Phylum Chordata, which includes the well-known vertebrates (fishes, amphibians, reptiles, birds, mammals), hagfishes, tunicates, and lancelets.

    tolweb.org

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