Speeton Clay

Speeton Clay Stratigraphic range: Lower Cretaceous
Speeton Clay at Reighton Sands, North Yorkshire.
Type	Geological formation

The Speeton Clay is a Lower Cretaceous geologic formation in northern England. The most common fossils in the unit are belemnites, followed by ammonites and the lobster Meyeria ornata. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.