| Purlawaugh Formation | |
| Type: | Geological formation |
| Age: | Toarcian-Oxfordian |
| Period: | Oxfordian |
| Prilithology: | Sandstone |
| Otherlithology: | Siltstone, mudstone, coal |
| Region: | New South Wales |
| Coordinates: | -32.2°N 149.7°W |
| Paleocoordinates: | -73.1°N 84.1°W |
| Subunits: | Comiala Shale & Merrygoen Ironstone Members |
| Underlies: | Pilliga Sandstone |
| Overlies: | Garrawilla Volcanics |
| Thickness: | Up to 100m (300feet) |
| Extent: | Surat Basin |
The Purlawaugh Formation is a Toarcian to Oxfordian geologic formation of New South Wales, Australia. The formation has provided many fossil fish and flora at the Talbragar fossil site.[1]