Gephyrosauridae

Gephyrosauridae is an extinct family of rhynchocephalians that lived in the Late Triassic and Early Jurassic. They are generally considered to be rhynchocephalians that lie outside of Sphenodontia, but in some analyses they are recovered as more closely related to squamates than to sphenodontians.

Distribution
Members of Gephyrosauridae are known from the United Kingdom, and Switzerland.