Chordata

Animal Diversity Web Phylum Chordata

Presents the differentiating characteristics of the members of the phylum.

Animal Genome Size Database: Chordates

Details information on members of the phylum that do not have a spinal cord.

Biology of Chordates

Previews the video showing vertebrate evolution from BioMedia Associates. With images and ordering information.

Characteristics of Chordates

Lists the unique features of members of the phylum that it shares with what is believed to be its ancestors.

Chordate

Features the unique characteristics of the members of the phylum. With links to classes and subgroups.

Chordates

Offers a short lecture on the general characteristics and subdivisions of the phylum.

Chordates

Relates phylum characteristics and information on subphyla.

Chordates From Tunicates to Humans

Describes the common features of the members of the phylum as well as its major divisions. With links to subgroups.

Encyclopedia.com: Chordata

Offers definitions, related topics, newspaper and magazine articles, and videos.

Introduction to the Chordata

Offers information on the phylum that includes humans and all the vertebrates. Includes distinguishing features.

Introduction to the Vertebrates

Presents the unique characteristics of the animals with backbones. With links to related sites.

Paleontology Portal: Hemichordates and Chordates

Contains characteristics, earliest fossil occurrence, and access to images of fossil specimens from various eras.

Phanerozoic Aeon 570 MYA-Present Development of Chordates Up to the Vertebrates

Presents a discussion on animal evolution throughout the eleven periods in this particular eon.

Reptiles and Amphibians

Shows pictures and links.

Reptiles and Amphibians

Lists web sites with short descriptions. With photos.

Reptiles and Amphibians in French

Shows pictures and links.

Ryan Photographic Chordates

Provides access to a collection of images of members of the phylum.

Science News Chordates and Vertebrates

Provides links to articles on members of the phylum.

Smithsonian National Zoological Park Reptiles and Amphibians

Discusses member species and population. With pictures, links and related events.

South Carolina Reptiles and Amphibians

Provides pictures and links to species in other areas of the globe.

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.

Zoobotanica Chordates

Offers scientific illustrations of members of the phylum.

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