Early Jurassic Pterosaurs
The Lower Jurassic period started about 190 million years ago and the United Kingdom stages are all classified as Lias.
The United Kingdom has a limited number of pterosaur fossils from this timescale. The most significant being Dimorphodon macronyx from the Early Lias and Blue Lias of Dorset and Gloucestershire. There is also an important skull fossil, Dorygnathus Purdoni, from the Late Lias Alum Shale of Yorkshire. Other Early Jurassic pterosaur remains are fragmentary.
The Late Lias in Germany has also yielded significant pterosaur fossils. India and Arizona, U.S.A. are also sites where Late Jurassic pterosaur remains have been found.
The position of the continents about 180ma ago