Rhynchocephalia

• Animal Diversity Web Family Sphenodontidae (Tuataras)  - Discusses distinguishing characteristics, longevity, morphology, status and distribution.
• BBC.CO.UK Tuatara  - Discusses characteristics, habitat, behavior, diet and reproduction.
• More Ancient Than the Dinosaurs - The Tuatara  - Describes appearance, behavior, phylogeny, status and habitat.
• Order Sphenodonta Rhynchocephalia  - Displays photos. With descriptions.
• Tuatara  - Contains data on anatomy, diet, predators, habitat, reproduction and classification. With pictures and links.
• Tuatara Sphenodon punctatus  - Describes characteristics, behavior, habitat, distribution and reproduction. With photos.
• Tuataras (Sphenodons)  - Provides data on suborders.
• Why Does the Tuatara Hunt?  - Describes behavior, appearance and length.