| Ampthill Clay | |
|---|---|
| Stratigraphic range: Oxfordian | |
| Type | Geological formation |
| Unit of | Ancholme Group |
| Underlies | Kimmeridge Clay |
| Overlies | West Walton Formation or Corallian Group |
| Thickness | 0-90 m |
| Lithology | |
| Primary | Mudstone |
| Other | Limestone, Marl |
| Location | |
| Region | England |
| Country |  UK |
The Ampthill Clay is a Mesozoic geologic formation in southern England. Dinosaur remains diagnostic to the genus level are among the fossils that have been recovered from the formation.[1]
- ^ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.