| Rutland Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Formation |
| Unit of | Great Oolite Group |
| Sub-units | Stamford Member, Thorncroft Sand Member, Wellingborough Limestone Member |
| Underlies | Blisworth Limestone, White Limestone Formation |
| Overlies | Lincolnshire limestone, Northampton Sand Formation |
| Thickness | Typically about 8 to 12m, up to 15m |
| Lithology | |
| Primary | Mudstone |
| Other | Limestone |
| Location | |
| Region | England |
| Country | United Kingdom |
The Rutland Formation is a geologic formation in England. It preserves fossils dating back to the late Bajocian to Bathonian stages in the Jurassic period, about 169 million years ago. It is the lateral equivalent of the Sharp's Hill Formation and the Fuller's Earth Formation. The "Rutland Dinosaur" specimen of Cetiosaurus is known from the formation.[1]