| Unitof: | Signal Hill Group |
| Period: | Ediacaran |
| Prilithology: | Siliciclastic marine siltstones |
| Type: | Formation |
| Underlies: | Gibbett Hill Formation |
| Overlies: | Renews Head Formation |
| Map: | Cappahayden Formation map.svg |
The Cappahayden Formation is a formation cropping out in Newfoundland. It comprises fine grey sandstones/siltstones with very fine black parallel laminations, rarely with crossbedding.[1]