Seymouria (name meaning "Animal from Seymour") is a genus of seymouriamorph that originated during the Early Permian era in what is now North America and Europe. Measuring around 32 in, this small, egg-thieving amphibian possessed reptilian-like attributes that made it well-adapted to life on land.
In the Series 1 episode "Sail Backs", several Seymouria were brought to the park from Early Permian Germany, 280 million years ago.