| Marsh Farm Formation | |
| Type: | Formation |
| Period: | Lutetian |
| Prilithology: | clay, sand |
| Region: | England |
| Country: | United Kingdom |
| Unitof: | Bracklesham Group |
| Underlies: | Selsey Sand Formation |
| Overlies: | Earnley Sand Formation |
| Thickness: | 12 - 13.5 m |
| Extent: | Eastern Hampshire Basin |
The Marsh Farm Formation is a geologic formation in England. It preserves fossils dating back to the Paleogene period.