Biology of Chordates
Previews the video showing vertebrate evolution from BioMedia Associates. With images and ordering information.
Features the unique characteristics of the members of the phylum. With links to classes and subgroups.
Offers a short lecture on the general characteristics and subdivisions of the phylum.
Relates phylum characteristics and information on subphyla.
Introduction to the Chordata
Offers information on the phylum that includes humans and all the vertebrates. Includes distinguishing features.
Tree of Life Chordata
Describes the group that includes the mammals, fishes, amphibians, reptiles and birds.
Will's Skull Page
Offers access to images of skulls from mammals, reptiles and birds. With descriptions and measurements.